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🔧 Clamp down on electrical uncertainty with MESTEK’s all-in-one pro meter!
The MESTEK Digital Clamp Meter CM83E is a versatile, professional-grade multimeter featuring True-RMS accuracy with 6000 counts, capable of measuring up to 600A AC/DC current and 600V voltage. It includes non-contact voltage detection, temperature measurement up to 1832°F, and a backlit display with LED flashlight for low-light work. Certified for CAT III 1000V and CAT IV 600V safety standards, it’s designed for electricians, industrial technicians, and serious DIYers seeking reliable, precise diagnostics in one compact tool.












| ASIN | B09VJSMGK7 |
| Best Sellers Rank | #94,283 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #69 in Clamp Meters |
| Brand | MESTEK |
| Brand Name | MESTEK |
| Color | Black |
| Customer Reviews | 4.4 out of 5 stars 1,342 Reviews |
| Included Components | clamp meter;batteries;test leads; thermocouple; screwdriver |
| Item Dimensions | 7.87 x 2.95 x 1.46 inches |
| Item Weight | 195 g |
| Item dimensions L x W x H | 7.87 x 2.95 x 1.46 inches |
| Manufacturer | MESTEK |
| Measurement Type | Ammeter, Multimeter, Ohmmeter, Voltmeter |
| Model | CM83E |
| Part Number | 83E |
| Power Source | Battery Powered |
| Specification Met | CE |
| Style | Digital clamp meter ac dc multimeter |
| Style Name | Digital clamp meter ac dc multimeter |
| Upper Temperature Rating | 1832 °F |
J**Y
good tool
Ok. So... this thing works great. seems to be pretty accurate. The only thing i know of is you have to make sure you firmly press the leads into the meter. Secondly, and may not really be a problem in most situations, is the read time. The amount of readings it takes in a set amount of time. So compared to my Snap On meter, this thing reads slow. This isn't an issue for me really. I have different meters used for different things. this one works great for testing out electrical systems without having to disconnect anything. Overall, a great tool for the money
F**Y
Works great, reasonably accurate, good value
The product team that designed this meter did a good job. Feels solid, display is easy to read, controls are self explanatory. AD/DC voltage readings are very accurate, comparing with my lab-grade meters. Capacitance is -1% from my Fluke 117 - that's good. AC current readings are within spec, based on measuring HVAC heat strip current against known ratings. Certainly accurate enough for diagnosing motors, heaters, etc. I'd buy it again.
4**S
Good buy for the money.
Works very well for the price. My cousin is a IBEW Union professional electrician. He came to visit & lend his knowledge with a project I had going on for a (home generator) install. He asked if I had a meter so I handed his this little jewel. He turned it ON & used it to see what my overall amperage draw was for the entire house under it's max load. He complimented it being as accurate as his daily used one. Sure it doesn't have all of the options his professional FLUKE branded does but he was very surprised that it performed as well as it did when I told how much I paid for .... that's good enough for me!
M**S
Life saver!
The price for this meter was great! I needed to troubleshoot the electric brakes on my trailer. It was recommended to cut into the wires to each brake to perform the tests. With this meter I did not have to cut the wires. Cut wires and reconnects usually lead to future failures. With a set voltage applied I could see if the brake was drawing the current that it should be. I checked the meter voltage readings against my other meter. It performed well. I checked the current portion by using ohms law. It did well there also. Great meter for a clamp on dc current tester.
S**.
Good accuracy on DC Volts and DC Amps. Clear display in bright light or darkness!
I have two other clamp on ammeters. I needed a third DC Amps meter to allow measuring different wires at the same time. One of my other meters was designed with a reverse LCD display that has white numbers on a black background. That device was completely useless outdoors, where sunlight makes the readings on the display invisible. I decided to buy this MESTEK meter to replace the useless device and I was surprised at how much better MESTEK meter is. My calibration results against an Analog Devices DC Voltage Reference: 0.000V 0.000V 2.500V 2.500V 5.000V 5.010V 7.500V 7.49V 10.000V 9.99V Excellent DC accuracy! I used an inexpensive DVM with at 20 Amp internal current shunt to check the DC current clamp accuracy. 0.0 A 0.1 A 2.0 A 2.0 A 4.0 A 3.9 A 5.0 A 5.0 A Excellent DC current for an inductive clamp meter at this reasonable price point. Of course, these results are only possible if you learn to use the ZERO function before each reading. Clamp sensors are all subject to drift and offset errors. I have never seen a DC clamp Ammeter respond with errors of just 0.1 Amps in this test. This kind of performance would normally be associated with very expensive calibrated equipment from a big name manufacturer. User mode setting is easy, operation is intuitive, display is vastly superior to the other products with reverse LCD numbers. I must admit I am impressed at the good value this meter delivers.
J**N
Awesome tool
Bought for microfarad testing
M**O
Meter
Works great
B**.
Very poor quality and no support!
Bought July 2025. Used once on on 120 V. Dec 25, tried to use on a 12V circuit on my RV and it won’t register any 12V DC current. Never thought about testing when I got it, thought it worked. But only on AC current. Tried to find a way to contact mfg, but it’s past its time for support. I should have listened to the lower review scores. Do not buy!
T**N
Utile
Appareil indispensable pour un électricien, précis et pas trop cher
E**N
Man bör ha vissa elektriska kunskaper för att hantera detta instrument. Verkar funka bra till mig
Bra med möjlighet att kunna mäta laddningsström och tjuvström i bilar. Bra pris.
S**S
Great product
Great product and easy to use
G**H
1.5,AAA battery missing
1.5,AAA battery missing
L**O
Bello
Che e uno strumento che serve e va benissimo
Trustpilot
4 days ago
2 weeks ago