We specialize in Current Sensors, CT Sensors, and Measuring Instruments.

AC Clamp Meter

M-2020 Mini Digital Clamp Tester (CE)40mmφCT, ACA, ACV, DCV, Ω

AC Current AC/DC Voltage Resistance


40mmφCT window and ultra compact size.
Low cost and multi-function clamp tester.
Data hold function and auto power off.
Conform to IEC safety requirements.
Withstanding Voltage AC 3700V 1 minute max. (Between the core of CT and outer case)
Storage Temperature -10℃ to ~ 60℃ < 70%RH ( without condensation )
Accuracy (23℃±5℃ 80%RH or less)
Operating Temperature 0℃ to ~ 40℃ < 80%RH ( without condensation )
Power supply SR-44(1.55V)×2 or LR-44×2
Power consumption 5mW
Weight Approx. 100g
Measuring Range AC Current:30A/300A (2 ranges auto)
AC Voltage:3V~500V (4 ranges auto, 50/60Hz)
DC Voltage:300mV~500V(5 ranges auto)
Resistance:300Ω/3000Ω (2 ranges auto)
AC Conversion Average sensing rms reading
Safety standard IEC61010-1, IEC61010-2-032
Installation CategoryⅡ 600V or CategoryⅢ 300V
Jaw opening capability 40mmφ
Limitation of circuit voltage Less than AC 500V
Size 64(W)×193(H)×24(D)mm
Accessories Soft case:1
Instruction manual:1
Test lead:1
Batteries LR-44(1.55V):2
Display 3.5 digit LCD max. reading of 3200
Over range indication "OL" mark on LCD
Data hold indication "DH" mark on LCD
Low battery indication "B" mark on LCD
Auto power off Approx. 10 minutes later after the power on.
E.M.C. standard EN 50081-1 and EN 50082-1
Measuring method Dual slope integration mode
AC Current (ACA) 0~300A:±2%rdg±8dgt
AC Voltage(ACV) 0~500V:±2.3%rdg±6dgt
DC Voltage (DCV) 0~500V:±1.3%rdg±3dgt
Resistance (Ω) 0~3000Ω:±2%rdg±5dgt
Sampling time 2 times/sec
Battery life SR-44(200 hours), LR-44(100 hours)