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

AC/DC Clamp Meter/Leakage Clamp Meter

M-280 AC/DC Mini Digital Clamp Tester (CE)30mmφCT, ACA, DCA ACV, DCV, Ω

AC/DC Current, AC/DC Voltage, Resistance (CE)
Meets safety standard CAT.Ⅱ 600V or CAT.Ⅲ 300V


30mmφ CT window and ultra compact size.
Conform to IEC safety requirements.
Low cost and multi-function clamp tester.
Max. and Min.hold function.
Data-hold function and auto power off.
Auto zero adjustment for DC current offset.
Measuring method Dual slope integration mode
Display 4 digit LCD max. reading of 9999
Measuring Range AC Current:1000A
DC Current:1000A
AC Voltage:500V
DC Voltage:500V
Accuracy (23℃±5℃, 80%RH or less)
Range/Input range/Accuracy
AC Current (ACA)/0~600A/±1.5%rdg±8dgt
AC Current (ACA)/600.1~999.9A/±3%rdg±8dgt
DC Current (DCA)/0~±600A/±1.5%rdg±6dgt
DC Current (DCA)/±600.1~±999.9A/±3%rdg±6dgt
AC Voltage (ACV)/0~500V/±1.0%rdg±8dgt
DC Voltage (DCV)/0~500V/±1.0%rdg±6dgt
Resistance (Ω)/0~600Ω/±1.5%rdg±8dgt
Jaw opening capability 30mmφ
Over range indication "OL" mark on LCD
Data hold indication "DH" mark on LCD
DC current zero offset By push button switch
Sampling time 2 times/sec
Polarity "-" sign for negative polarity
Max. memory function "Max" mark on LCD with max. value
Min. memory function "Min" mark on LCD with min. value
Limitation of circuit voltage Less than AC/DC 600V
Operating Temperature 0℃ ~ 40℃ < 80%RH ( without condensation )
Storage Temperature -10℃ ~ 60℃ < 70%RH ( without condensation )
Withstanding Voltage AC 3700V 1 minute max. (Between the core of CT and outer case)
E.M.C. standard EN 61326
Safety standard IEC61010-1, IEC61010-2-032
Installation CategoryⅡ 600V or CategoryⅢ 300V
Auto power off Approx. 10 minutes later after power on
Low battery indication "B" mark on LCD
Power supply LR-44×2
Battery life Approx. 6 hours continuous
Power consumption Approx. 12mW
Size 44.5(W)×177(H)×24(D)mm
Weight Approx. 95g
Accessories Soft case:1
Instruction manual:1
Test lead:1
Batteries LR-44(1.55V):2