2021 discount AstroAI Digital Multimeter TRMS 4000 Counts with DC AC voltmeter and Auto-Ranging Fast Accurately online Measures Voltage, Current, Resistance, lowest Capacitance, Temperature, Continuity, Frequency and Duty-Cycle. outlet sale

2021 discount AstroAI Digital Multimeter TRMS 4000 Counts with DC AC voltmeter and Auto-Ranging Fast Accurately online Measures Voltage, Current, Resistance, lowest Capacitance, Temperature, Continuity, Frequency and Duty-Cycle. outlet sale

2021 discount AstroAI Digital Multimeter TRMS 4000 Counts with DC AC voltmeter and Auto-Ranging Fast Accurately online Measures Voltage, Current, Resistance, lowest Capacitance, Temperature, Continuity, Frequency and Duty-Cycle. outlet sale
2021 discount AstroAI Digital Multimeter TRMS 4000 Counts with DC AC voltmeter and Auto-Ranging Fast Accurately online Measures Voltage, Current, Resistance, lowest Capacitance, Temperature, Continuity, Frequency and Duty-Cycle. outlet sale__after
2021 discount AstroAI Digital Multimeter TRMS 4000 Counts with DC AC voltmeter and Auto-Ranging Fast Accurately online Measures Voltage, Current, Resistance, lowest Capacitance, Temperature, Continuity, Frequency and Duty-Cycle. outlet sale__left
2021 discount AstroAI Digital Multimeter TRMS 4000 Counts with DC AC voltmeter and Auto-Ranging Fast Accurately online Measures Voltage, Current, Resistance, lowest Capacitance, Temperature, Continuity, Frequency and Duty-Cycle. outlet sale_top
2021 discount AstroAI Digital Multimeter TRMS 4000 Counts with DC AC voltmeter and Auto-Ranging Fast Accurately online Measures Voltage, Current, Resistance, lowest Capacitance, Temperature, Continuity, Frequency and Duty-Cycle. outlet sale__right
2021 discount AstroAI Digital Multimeter TRMS 4000 Counts with DC AC voltmeter and Auto-Ranging Fast Accurately online Measures Voltage, Current, Resistance, lowest Capacitance, Temperature, Continuity, Frequency and Duty-Cycle. outlet sale__front

Brand
AstroAI
Color
Red
Item Weight
0.72 Pounds
Item Dimensions LxWxH
6.11 x 4.25 x 1.53 inches
Measurement Type
Voltmeter, Multimeter


AstroAI 10000 Counts True RMS Digital Multimeter AstroAI 4000 Counts TRMS DMM AstroAI 6000Counts Digital Clamp Meter AstroAI new 2000 Counts TRMS Multimeter AstroAI 6000 Counts True RMS Digital Multimeter AstroAI Digital Clamp Meter
Range Selection Manual and Auto Manual and Auto Manual and Auto Manual and Auto Manual and Auto Manual and Auto
AC/DC Voltage
AC/DC Current Only AC Only AC Current
Resistance/Continuity
Diode
Capacitance/Frequency Only Capacitance X
Temperature X X X
Transistor hFE X X X X X
True RMS X
Maximum Display 10000 4000 6000 2000 6000 2000

AstroAI 4000 Counts True RMS Digital Multimeter

“For All of Life’s Adventures” is more than a slogan for us; it’s a lifestyle and core philosophy. AstroAI supports the adventurer within and we encourage our customers to take risks and push the envelope.

We don’t choose products based on market interests or fancy analytics. We develop tools and products for ourselves and our customers based on real-world needs and expectations.

The AstroAI multimeter is designed to be safely and accurately used by professionals in a commercial setting or weekend DIYer's . It's easy and safe to operate and features many different functions for measuring current, voltage, and resistance, as well as continuity, capacitance, and diode testing.

  • Manual and Auto Ranging
  • AC/DC Current/Voltage/ Resistance/Capacitance
  • Diode/ Continuity
  • Backlight Display/Data Hold
  • Overload Protection/robust outer case

Trouble Shooting with Maximum Safety


Trouble Shooting with Maximum Safety

AstroAI multimeters are professionally designed to troubleshoot electrical problems or just for electronics training.


Intelligent Anti-burn and Double Protection

Built-in F500mA/600V and F10A/600V explosion-proof ceramic fuse tubes; Double Protection, more secure and reliable; This multimeter is designed with safety in mind. Integrated fuses protect users of all skill levels.


Continuity Test

Connect the test leads to two points on the circuit being tested.

Backlit LCD and Data Hold

Large digital display with white backlit LCD for visibility in dimly lit areas; It is often easier to use the data hold to easily read and record data.

Low Battery Indication

Never run out of battery with a notification letting you know exactly when to replace the batteries.

Automatically Shut Off

Conserves power by automatically shutting off after 15 minutes of inactivity.

Full Support and Always Protected

Open up the support stand to prop up the multimeter and make reading measurements easier. The rubber sleeve ensures that the multimeter is always protected from wear and tear while on the job.

Product information

    Additional Information

  • ASIN: B07FDBW1PT
  • Customer Reviews: 4.6 out of 5 stars 5,556Reviews
  • Best Sellers Rank:
    #11,231 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement)
    #33 in Multi Testers
  • Date First Available: September 27, 2018
Product Warranty: For warranty information about this product, please click here
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Product guides and documents

User Manual (PDF)
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AstroAI Corporation
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Newly launched AstroAI digital multimeter 10000 counts, with advanced features, it can operate measuring functions easily and safely, and is suitable for household and car use.
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AstroAI snow cover,easy to install and save your time,suitable for all weathers.
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Get the AstroAI test leads with multimeter, and ready to check the electricity problems.
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Customer Questions

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Q: Is it possible that the leads supplied with the meter don''t plug into the front of the uni…

A: There’s a cap on the leads that you need to pull off. Once you remove the covering they fi…

Christopher Paul | 3 years ago

Q: Do this multimeter comes with a case, if not do anyone where can i buy one

A: no it doesn''t come with a case

Terry j. | 3 years ago

Q: are there test leads with aligator clips available for this meter? if so where?

A: Test leads with alagator clips do not come with the meter, but a set with alagator clips a…

Kendall Dechaene | 2 years ago

Q: Will this meter measure frequencies on a sensor with specs between .114hz and .152hz?

A: Hello Customer,

Thanks for your concern, yes, this meter can read frequencies between .…

Seller AstroAI Corporation | 3 years ago

Customer reviews

4.6 out of 54.6 out of 5
5,556 global ratings

Reviews with images

Top reviews from the United States

elric
2.0 out of 5 starsVerified Purchase
You''ll have to figure out how it works, instructions are worthless
Reviewed in the United States on August 24, 2019
You''ll have to figure out how it works, instructions are worthless. You need a magnifying glass to read the instructions but it won''t make much difference if the instructions are wrong. I purchased this to test a compacitor, it should have taken 1 minute to test... See more
You''ll have to figure out how it works, instructions are worthless.
You need a magnifying glass to read the instructions but it won''t make much difference if the instructions are wrong.
I purchased this to test a compacitor, it should have taken 1 minute to test it.
It took me about 1 hour to figure out how to test it because the instructions are wrong.
Below is exactly what the instructions say;
----------------------------------------------------------------------------------------------------------------------------------------
Capacitance Measurement
1. Connect the black test lead to the COM jack and the red to the "INPUT" jack.
2. Set the range switch to ( here it shows a symbol).
3. Press the "Select" Button to select continuity measurement mode, and the symbol "mF" will appear as an indicator.
4. Connect test leads across the capacitor under measure and be sure the polarity of connection is observed.
----------------------------------------------------------------------------------------------------------------------------------------
In reality, "mF" is never going to appear if you follow the instructions.
This is what happens when you follow the instructions.
1. Connect the black test lead to the COM jack and the red to the "INPUT" jack.
2. Set the range switch to ( here it shows a symbol).
3. Press the "Select" Button once and the continuity symbol will appear, press the "Select" Button again and the Diode symbol will appear, press the "Select" Button again and "nF" will appear. (" nF" NOT "mF" )
Press the "Select" Button again and it takes you back to the beginning. The "mF" symbol will never appear if you follow the instructions as stated in the instruction booklet even if you read them with a microscope.

Below is how it should be written because this is how it really works.
------------------------------------------------------------------------------------------------------------------------------------------
Capacitance Measurement
1. Connect the black test lead to the COM jack and the red to the "INPUT" jack.
2. Set the range switch to ( here it shows a symbol).
3. Press the "Select" Button three times until the symbol "nF" appears at the bottom right of the screen.
4. Connect test leads across the capacitor under measure and the "nF" will change to "mF", be sure the polarity of connection is observed.
-----------------------------------------------------------------------------------------------------------------------------------------
Technical Details for this tester as written on Amazon states that it operates on
3 Lithium Metal batteries required. (included)
Also under
Product description it states,
Power: 3 x 1.5V, AAA Batteries Included

Both of these statements are true but under answered questions a customer asked this question ( copied from the answered section)
Which lithium batteries does this use?
Obviously I thought this was a dumb question since the description on Amazon clearly shows the answer.
Turns the answer is far worse than the question.
Below is the question and the answer
__________________________________________________________________________________________________________
Question: Which lithium batteries does this use?
Answer: Hello Customer,

Thanks for your concern, there is a 9V battery inside the meter.

AstroAI Customer Support see less
By AstroAI Corporation SELLER on January 22, 2019

Customer support for the manufacturer and seller answered the question and they believe that it operates on a 9v battery.

These are the same idiots who supplied the instructions.

I gave this 2 stars because I was able to test my brand new and never used capacitor and I knew what the tester should show. The tester was very quick and accurate for testing capacitors.

I''m not willing to test anything else with it because I don''t have the time to figure out how to do each test.

If I don''t have an accurately written instruction manual, in English that does not require Binoculars to read, sometime very soon this Multimeter will be on it''s way back to Amazon.
79 people found this helpful
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Charles Celerier
3.0 out of 5 starsVerified Purchase
No longer able to read small DC voltages after first month of use
Reviewed in the United States on January 9, 2019
I was thrilled about this multimeter at first because of the price and how well it was working. Then yesterday the meter could no longer measure 3.3VDC on my breadboard. No really sure what went wrong, but I have another multimeter at home that could read the circuit just... See more
I was thrilled about this multimeter at first because of the price and how well it was working. Then yesterday the meter could no longer measure 3.3VDC on my breadboard. No really sure what went wrong, but I have another multimeter at home that could read the circuit just fine.

UPDATE: Astro AI saw my review and sent me a new multimeter immediately. I was very pleased with the quick turnaround and hope the new meter does not encounter the same problem.
78 people found this helpful
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Michael Y.
5.0 out of 5 starsVerified Purchase
GREAT LITTLE BUDGET METER FOR HOME/HOBBY
Reviewed in the United States on December 23, 2018
I already have the big brother to this meter and like it so much I tried this 4000 count one as well since the price is so low right now, I might like this smaller one a bit better than the larger one in some ways. For $17.99 and free shipping I simply have no real... See more
I already have the big brother to this meter and like it so much I tried this 4000 count one as well since the price is so low right now, I might like this smaller one a bit better than the larger one in some ways. For $17.99 and free shipping I simply have no real meaningful complaints, if any it would be the plugs would seem like they fit loose, but in all my testing and jiggling it does not seem to affect the electrical connection one bit, its just a result of matching this particular type plug in with the usual split jacks and the electrical connection itself doesnt show any effects from this it just seems to be the physical fit - ive never seen it affect the displayed number. I like this one as much or more than its big brother partly as this one has a better looking backlight. The blue backlight on the larger model has an odd washed out effect on the digits but the display is still very readable. This DT132A has a nice looking white backlight that I have no issues with other than like most it doesnt stay on long enough. As with its larger 6000 count brother theres a good deal of functionality here for the money, and ive found it very accurate in the main volt ohm cap ranges etc and it even reads temps without the thermocouple inserted if desired, and reads within 2 - 3 degrees - mine does at least. The continuity range has good volume, is reasonably fast and its even better after cleaning the tips with fine steel wool and alcohol. As with all meters in this price range theres little in the way of serious input protection, so use it accordingly its not an industrial plant meter its a home/hobby meter and given the price point and functionality im fine with that.
78 people found this helpful
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BLex
4.0 out of 5 starsVerified Purchase
Works for me
Reviewed in the United States on March 17, 2019
Positives +even when stored in box, it is small enough to fit in tool chest +display is large, backlit (optional), and easy to read +probe leads are a good length, +built in stand useful (my old meter didn’t have one) +feels pretty sturdy (apart... See more
Positives
+even when stored in box, it is small enough to fit in tool chest
+display is large, backlit (optional), and easy to read
+probe leads are a good length,
+built in stand useful (my old meter didn’t have one)
+feels pretty sturdy (apart from stand)
+printed manual (not just online)
Negatives
-probe “points” are a little small (tough to use sides of points to make contact to measure)
-while in the sealed cardboard box, when shaken, it rattled. Thought maybe a spare fuse was loose. Took off case, took out seven screws, and found both fuses were free in the case. Easy to fix, but if yours rattles, open it up and seat the fuses properly.
51 people found this helpful
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Grampy
4.0 out of 5 starsVerified Purchase
Good little meter for the $$$
Reviewed in the United States on March 29, 2019
Once this arrives, you can use your Amazon order # go to the AstroAI website to register for an extended warranty (no additional cost) for a total of 4 years. Meter works as advertised, accuracy compares with other meters I have, temperature is as accurate as can... See more
Once this arrives, you can use your Amazon order # go to the AstroAI website to register for an extended warranty (no additional cost) for a total of 4 years.

Meter works as advertised, accuracy compares with other meters I have, temperature is as accurate as can be expected (using included thermocouple).

Price is decent. If you are considering this meter also consider the WH5000A model, slightly larger size and display.

Feature(s) missing for my ease of use.. built in probe holders.
42 people found this helpful
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ScottF
1.0 out of 5 starsVerified Purchase
Terrible User Interface, Even Worse Instructions
Reviewed in the United States on February 5, 2020
This device does many different things -- and that''s the problem. All of this functionality is hidden behind one of the worst user interfaces I''ve ever tried to fight my way through. The screen is cluttered with all kinds of cryptic symbols. The front panel is, as well.... See more
This device does many different things -- and that''s the problem. All of this functionality is hidden behind one of the worst user interfaces I''ve ever tried to fight my way through. The screen is cluttered with all kinds of cryptic symbols. The front panel is, as well. There are a number of buttons that do different, mysterious things depending on what mode the device is in and how many times you push them. Nothing is clear or intuitive.

So anyone trying to use this meter, and learn all its tricks and quirks, is going to be spending a LOT of time referring to the instructions. And that''s the second problem: The instruction sheet is a small many-folded bit of paper with the smallest type I''ve ever seen in what was supposed to be user documentation. To read it, I literally had to get out a jeweler''s loupe magnifier that I bought for repairing electronic devices -- not exactly what you want to be doing when trying to refer to these instructions in the field. And, if you manage to read the instructions, you will find that they are sketchy, confusing and, in some places, seem to be incorrect.

The meter''s display is hard to read in most lighting conditions, but they do provide a backlight. Unfortunately, the light only stays on for 30 seconds or so, so you have to keep pushing the button (that sometimes performs other functions instead). And on some modes, the numbers keep flickering up and down, even when the leads are not touching anything. The lead they provide have caps over the prongs, and it was a real fight trying to get them off.

So, the meter arrived, I spent an hour or so trying to learn how to use it, HATED every minute of it, and finally decided to return it. It certainly is not a tool I would enjoy using for real work, ever. Unless you like puzzles, buy something else.
11 people found this helpful
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DoubleFault
5.0 out of 5 starsVerified Purchase
WORTH $20
Reviewed in the United States on January 3, 2019
You cannot beat the quality for the price. What they fail to mention is that the leads are extra long compared to others. That''s a huge plus. The "kickstand" in the back is NICE. The digital readout is just the right size. The only drawback I have is that the "backlight"... See more
You cannot beat the quality for the price. What they fail to mention is that the leads are extra long compared to others. That''s a huge plus. The "kickstand" in the back is NICE. The digital readout is just the right size. The only drawback I have is that the "backlight" turns off too soon. It would be nice if the backlight stayed on until the unit went into auto-off or until the user turned it off. Other than that, five stars across the board.
31 people found this helpful
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J G.
5.0 out of 5 starsVerified Purchase
Good customer service.
Reviewed in the United States on July 3, 2019
I was initially looking at the 6000 count meter but the comment on Amazon just below the picture said there was a newer version so I clicked on that link. A friend (electrical type) told me I should have stuck with my first choice. This meter is more than enough... See more
I was initially looking at the 6000 count meter but the comment on Amazon just below the picture said there was a newer version so I clicked on that link. A friend (electrical type) told me I should have stuck with my first choice.

This meter is more than enough for what I will be using it for as a DIY "don''t-wannabe-electrician" - I''ll leave that for the professionals. After receiving the meter I started to investigate some of the "buzz" words that I encountered in the various product reviews and had I done this before buying, I would have stuck with this unit''s older brother. To that end I would suggest that any entry-level person looking for a budget meter at least read up on the various CAT (II,III,IV,etc.) ratings and what they represent to at least be aware of some potential hazards.

I stuck with the DT132A (4000 counts) because of all the positive reviews and the price. The next model up is only about $15 more but I would have found comfort in the higher CAT ratings although I don''t intend on venturing into that territory.

I was "middle of the road" on the accuracy rating simply because I have no experience to grade against. I applaud the company''s customer service as they contacted me right off and asked that I call them before returning the meter if I had any problems. First, I thought the thermocouple was faulty and they offered to send me a replacement (it was operator error). Then I found the battery cover screw had been severely over-tightened and the head stripped. They provided me with the screw size which I have already replaced and without "dinging" them on the rating. I easily located a full size version of the product manual - the one that came with unit is small and hard to read. I don''t anticipate calling their customer service again but I am confident they will respond promptly.

For the price and for what I will be using it for I am satisfied with my purchase. There are many budget meters on the market but I have zero knowledge on the specific needs of the buyers - only my intended purposes - so I had to rely on the various reviews that I read.
50 people found this helpful
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Top reviews from other countries

URI STOJANOVIC
5.0 out of 5 starsVerified Purchase
ASTROAI DOES THE THINKING SO YOU DON’T HAVE TOO
Reviewed in the United Kingdom on June 13, 2019
The AstroAI Digital Multimeter, TRMS 4000 Counts Volt Meter is a product I would seriously recommend. As multimeters go, this little unit has all the unique features of most of its “High End” rivals and at a price which is very affordable. Aesthetically well designed and...See more
The AstroAI Digital Multimeter, TRMS 4000 Counts Volt Meter is a product I would seriously recommend. As multimeters go, this little unit has all the unique features of most of its “High End” rivals and at a price which is very affordable. Aesthetically well designed and very easy to use. The “Auto” range feature is exceptional which means no fumbling about guessing what setting you should use on any of its functions, it just does it all automatically for you. It’s accurate, it’s fast, it’s a mid range product at high end spec. The accompanying booklet would be better served if it was larger ie: same as the package box, and a carry case would have been a nice addition to store the meter and it’s accompanying leads. (Maybe AstroAI will read this review and send me one for free) fingers crossed !!
16 people found this helpful
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Baz
5.0 out of 5 starsVerified Purchase
AstroAI 4000 counts Multimeter
Reviewed in the United Kingdom on June 23, 2020
I am no expert by any means. I have bought it to Carry out routine checks around the house as a DIY person. I wanted a Multimeter and had a good search around, reading a lot of reviews and watching few YouTube videos. After an intensive research, I reached a conclusion that...See more
I am no expert by any means. I have bought it to Carry out routine checks around the house as a DIY person. I wanted a Multimeter and had a good search around, reading a lot of reviews and watching few YouTube videos. After an intensive research, I reached a conclusion that if you are a professional then go for the expensive brand like Fluke and it will last you for a life time. On the other hand if you are a DIY person and use it occasionally then AstroAI has so much to offer for a fraction of cost. I picked it up on prime deals for under £20 and it does everything I ever want it to do. Due to Covid 19, my car had been on my drive for months and despite starting Engine and leaving it running for several minutes, I still had a dead battery. I just wanted to check if battery is still good enough to re charge so I bought it and after charging my battery over night. I took a reading and hurray it is still keeping 13.7 watt charge which shows that battery cells are still healthy hence no need to buy a new battery yet. It is also very effective solution to check fuses and even AA or AAA batteries to see if they are new or used. I have already tried it on few things and I am very happy so far with this Multimeter. Word of warning Do not use it on household electrics unless you are a qualified electrician as tools in wrong hands can be lethal.
6 people found this helpful
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Alex S Wilson
5.0 out of 5 starsVerified Purchase
Good value, excellent support, a few small issues.
Reviewed in the United Kingdom on November 15, 2019
This appears to be good value meter, well made and easy to use as other reviews have stated. However there are a couple of issues. The leads in my meter were not very good. I actually ruined one of the leads completely when trying to remove cover to use extended point. It...See more
This appears to be good value meter, well made and easy to use as other reviews have stated. However there are a couple of issues. The leads in my meter were not very good. I actually ruined one of the leads completely when trying to remove cover to use extended point. It is Very difficult to remove the covers. As a result I had to spend money on a new set. The second minor issue for me is the beep on selector changes and button press. I am sure it will not be an issue for many but it can slightly annoying. The support from AstroAI is excellent, prompt and friendly.
8 people found this helpful
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milliamp
5.0 out of 5 starsVerified Purchase
It''s got the measure of testing!
Reviewed in the United Kingdom on October 14, 2020
This meter was purchased on the basis of a good review on Darren Walkers YT channel (worth a watch) . At the time of purchase it was on a limited time deal. Its proven to be worth every penny and for a cheap meter is reasonably fast/accurate, it has a good set of test...See more
This meter was purchased on the basis of a good review on Darren Walkers YT channel (worth a watch) . At the time of purchase it was on a limited time deal. Its proven to be worth every penny and for a cheap meter is reasonably fast/accurate, it has a good set of test features/ Nicely packaged, it comes with a decent set of probes and a thermocouple. The meter is protected by a quality flexible/removable boot and the screen has good angles of visibility. The flip out stand is not the best I''ve seen but is a welcome addition. Don''t misunderstand me, this is in no way comparable to a Fluke meter, but if you are on a budget and just want a good quality test meter for home/car/hobbies etc then this could well be the meter for you.
3 people found this helpful
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Mr. J. Elliott
5.0 out of 5 starsVerified Purchase
Easy to use, works well.
Reviewed in the United Kingdom on September 9, 2020
I bought this to replace my previous Maplin autoranging meter after that died when the batteries leaked. The autoranging makes using this easy, and i particularly like that DC Volts and AC Volts are selected by different positions on the dial - so i don''t need an additional...See more
I bought this to replace my previous Maplin autoranging meter after that died when the batteries leaked. The autoranging makes using this easy, and i particularly like that DC Volts and AC Volts are selected by different positions on the dial - so i don''t need an additional ''function'' button press to select the right one - which is an issue on many other multimeters. The continuity function works well - quick to react and easy to hear. I also like that this model includes a temperature probe - a useful feature for checking fridges, freezers, and ovens. The display is big and clear, but as previous reviewers have pointed out - the illumination only stays on for a few seconds which might be an issue if you need to use it in dimly lit areas for a prolonged period (my last meter was just the same in this respect). On the other hand, if it stayed on much longer i guess the batteries wouldn''t last long. The unit itself is a conveniently compact size compared to other meters, but with a good sized display, making it pleasant to handle. Subjectively, i think this meter takes slightly longer to display a reading than my last one, but it also seems to settle and give a stable reading better. Another advantage compared to other meters is that it can measure up to 500ma on the fused input before having to move the lead to the 10A input. Many other meters can only handle 200ma. The leads seem OK - not too delicate. But i''ll keep my old ones as spares just in case. Pleased with the purchase so far - it cost half what the last meter did - and i purchased that 16 years ago!
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2021 discount AstroAI Digital Multimeter TRMS 4000 Counts with DC AC voltmeter and Auto-Ranging Fast Accurately online Measures Voltage, Current, Resistance, lowest Capacitance, Temperature, Continuity, Frequency and Duty-Cycle. outlet sale

2021 discount AstroAI Digital Multimeter TRMS 4000 Counts with DC AC voltmeter and Auto-Ranging Fast Accurately online Measures Voltage, Current, Resistance, lowest Capacitance, Temperature, Continuity, Frequency and Duty-Cycle. outlet sale

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