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

AC/DC Clamp Meter/Leakage Clamp Meter

M-230 AC/DC Mini Digital Clamp Tester23mmφCT, ACA, DCA

AC/DC Current, 20A/200A, 23mmφ CT


23mmφCT window and ultra compact size.
Data-hold function. Especially useful when working in dark or hard to get areas.
Accurate gearing mechanism for closing of CT.
Best tool for automotive service.

26 available in stock as of January 20, 2020

Measuring method Dual slope integration mode
Display 3.5 digit LCD, max. reading of 1999
Range AC/DC 0~20A/200A
Jaw opening capability 23mmφ
Over range indication Blanking of all digits except MSD 1
Maximum indication 1999
Low battery indication "B" mark on LCD
Data hold indication "DH" mark on LCD
Sampling 2 times/sec
Withstanding Voltage AC 1000V 1 minute max. (Between the core of CT and outer case)
Insulation Resistance 10MΩ or more(Between internal circuit and core of CT)
Limitation of circuit voltage Less than AC/DC 500V
Operating Temperature 0℃ to 40℃, 80%RH max. ( Without condensation )
Storage Temperature -10℃ to 60℃, 70%RH max. ( Without condensation )
Power supply 1.55V (SR-44, LR-44)×2
Power consumption 7mW
Battery life SR-44 (30 hours), LR-44 (16 hours)
Size 48(W)×146(H)×20(D)mm
Weight Approx. 100g
Accessories Soft case:1
Instruction manual:1
Batteries LR-44(1.55V):2
AC Current (Accuracy 23℃±5℃, 80%RH or less)
Range/Resolution/Accuracy(50/60HZ)/Accuracy(20~500Hz)/Max. input
20A/10mA/±1.0% rdg±5 dgt/±1.0% rdg±5 dgt/500A peak
200A/100mA/±1.5% rdg±5 dgt (0~150.0A) ±2.5% rdg±5 dgt (150.1~199.9A)/±2.0% rdg±5 dgt (0~150.0A) ±3.5% rdg±5 dgt (150.1~199.9A)/500A peak
DC Current (Accuracy 23℃±5℃ 80%RH or less)
Range/Resolution/Accuracy/Max. input current
20A/10mA/±1.0% rdg±3dgt/500A peak
200A/100mA/±1.5% rdg±3 dgt(0~150.0A) ±2.5% rdg±3dgt(150.1~199.9A)/500A peak