AstroAI Digital Clamp Meter Multimeter 2000 Counts Amp Voltage Tester Auto-ranging with AC/DC Voltage, AC Current, Resistance
4.6 | 11,336 ratings
Price: 19.79
Last update: 01-31-2026
About this item
- Important Tips - This CM2K0R clamp meter can not test DC Current. To measure the AC Current you need to clamp the meter around one of the wires and not the whole power cord. Ensure the conductor to betested is in the center of the clamp head. The clamp Jaw is only used to measure current. Do not measure voltage by clamping the conductor being measured.
- Versatile Digital Clamp Meter - Accurately measures AC/DC Voltage, AC Current, Capacitance, Resistance, Diode Continuity and Live Wire Tests. This clamp meter is a really useful tool for solving industrial and household electrical issues.
- Thoughtful Design - Support Data Hold, Max/Min, Auto Shut-off, low battery indicator and continuity buzzer. Includes Convenient features like Audial and Visual Alarm, LCD Backlit Screen and Flashlight make it easy to use. Two 1.5V AAA batteries are included in the package.
- Non-contact Voltage Testing - This Clamp Meter features non-contact voltage testing with sound and light alarm. When the Meter senses a weak AC signal, the green indicator light will come on and the buzzer will emit a slow, audible beep. when the Meter senses a strong AC signal, the red indicator light will come on and the buzzer will emit a quick beep.
- Enhanced Safety - The clamp meter has passed the environmental pollution degree 2 and overvoltage category III 600V safety standards. If you have any questions about the product, feel free to contact us! Our California-based support team will respond within 24 hours.
Product information
Features & Specs
| Power Source | Battery Powered |
|---|---|
| Minimum Operating Voltage | 2 Volts |
| Measurement Type | Ammeter |
Style
| Style Name | 2000 Counts AC Current |
|---|---|
| Color | Blue |
Measurements
| Item Weight | 386 Grams |
|---|---|
| Item Dimensions | 2.68 x 1.14 x 7.67 inches |
Feedback
AstroAI Digital Clamp Meter Multimeter 2000 Counts Amp Voltage Tester Auto-ranging with AC/DC Voltage, AC Current, Resistance, Capacitance, Continuity, Live Wire Test, NCV, Blue
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Item details
| Brand Name | AstroAI |
|---|---|
| Model | CM2K0R |
| Manufacturer | AstroAI |
| Included Components | 2000 Counts Clamp Meter, Test Leads (Pair), User Manual, Storage Bag |
| Best Sellers Rank |
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| ASIN | B08MTTX66X |
| Customer Reviews | 4.64.6 out of 5 stars(11,329) 4.6 out of 5 stars |
User guide
| Specification Met | Beep |
|---|
Top reviews from the United States
- PointTwoSevenSevenGood buy. I already got my monies worth out of it.Works fine and appears to be accurate. I’m using it for general purpose DIY stuff so I can’t comment on its accuracy being sufficient for the micro measurements needed for fine electronic components testing, but it did fine measuring the capacitor on my air conditioner (which is not a micro measurement). Continuity, diodes, voltage (both ac and dc) seem to be working fine. I’m used to the old school meters that use a multitude of selector settings so I’m still getting used to the general auto range and function button operation. I consider myself to be a novice, but I already know what those different functions are used for and how easy it is to ruin a meter when used incorrectly, but a 100% complete beginner novice needs to do some reading and develop an understanding of general electrical and electronic functions to get the most out of…well, most any multimeter. If you don’t understand why it’s not a good idea to measure high amp/current flow via direct contact with a handheld multimeter, please do some reading before attempting to do so. I have not tested the non contact voltage function nor the amp/current function via the conductive clamp, but if I have trouble with them, you’ll see it as an edit to this post. I have to say that for the price, this multimeter is extremely well packed with function features. A similar meter from a high end brand would be ten times the price. Again, I just got this one but my experience with entry level price point meters has demonstrated a loss of voltage accuracy over time. (Over time equals 3 or 4. The trick is finding out if it’s years, months, or even days in some cases) There’s no way to calibrate price point meters like what the pros do with the multimeters they mortgaged their house for, so keep that in mind. If you are measuring residential a/c voltage and you’re off by a half or even a whole volt, it’s not really going to make a difference, but if you’re working on a car or inside a computer, a half a volt could be the make or break on your diagnosis. I learned on old school analog meters so I already know multimeters are delicate instruments used to take fine measurements, so do your best to not drop them, don’t toss them in your tool box, do not let them get wet, don’t store them in high humidity or high or low temp environments, change the battery(s) at least annually, and don’t pick them up by the test leads, and they will be more dependable over a longer period of time. If for any reason you let the magic smoke out of your multimeter, it will no longer be good for anything other than a conversation piece. Old school analog meters with all of these functions didn’t even exist and if they did it would be all I could do to lift it and the price would exceed that of the average car.
Now I’m not in a faraday cage testing mother boards or printed circuit components, but all things considered, for 40 dollars this multimeter is very impressive and a good buy. I’ve already got 40 dollars worth of value out of it so even if I only get a year of use out of it, I’ll be happy. - KCniceit's a great multimeter at a great price and is very accurate in all reading selections. it's cheap enough and accurate enough that you can use it to only read HVAC capacitors, it's cheaper than a replacement probe.
- CKGreat little multimeter for the price.I bought this item only because my trusty 20-year-old multimeter only measures DC amps, but I needed to measure AC amps for troubleshooting a gas range ignitor. The multimeter is very well constructed with good fit and finish, especially for the low price. Although his thing may not serve the needs of a professional technician it is more than good enough for 99% of home use needs. The meter solved my problem and helped avoid buying unnecessary parts to effect the repair.
- CharlesA good buy. $35 saved me $250.Having been an automotive tech in a past life, specializing in electrical, I can confidently say this is plenty good for basic automotive electrical troubleshooting needs. And it's sturdy enough for that work. I was quickly able to diagnose a suspected problem with an RV DC-DC converter that had me guessing between a faulty breaker and/or the charger itself.
It appears it will do fine for my DIY exploits on 120VAC for the house and appliances.
Here's is something the manufacturer can improve upon, IMHO. Documentation. I've never used a clamp meter for working on AC circuits until now, but I assumed that like DC, only one conductor can be tested at a time. That turned out to be true for this device. Or in other words, do not clamp this directly onto, say, the cord of a household appliance and expect to get results. You will not because opposing polarity conductors that close to each other nullify the magnetic fields of each other. I noticed they do not call this out in their manual [they do in the product description here, though]. I believe that may introduce some confusion. Also, I'm assuming "hard wired" current readings intensionally do not work. They do not on mine and the manual isn't clear regarding this. However, I didn't buy it for that. I primarily need inductive current readings, so the other features I see as a bonus. Especially the near field/live circuit testing for AC work as my previous tester went missing.
I'm not sure it's "Fluke" accurate, but it's been more than good enough where applicable. I do use a Fluke on my bench on "little stuff", where high accuracy is a need. I don't think this is truly intended for ma/mv use. Or in other words, it may be capable of that resolution, but it would not be my first pick as a daily driver for working on "little stuff". Seems plenty good so far to toss in a tool bag/box for automotive and house needs. It's a nice, rugged little meter at a low price.