| Mode | Test voltage | Voltage accuracy | Short-circuit current |
| GM-5kV | 0.25,0.5,1,2.5,5kV | ±(5%+10V) | 10mA |
| GM-10kV | 0.5,1,2.5,5,10kV | ±(5%+10V) | 10mA |
| GM-15kV | 1,2.5,5,10,15kV | ±(5%+10V) | 10mA |
| GM-20kV | 0.5,1,2.5,5,10,20kV | ±(5%+10V) | 10mA |
| Range | Resistance measurement range | Accuracy |
| 20MΩ/500V | 0.5~19.99 MΩ | ±(5%+5digital) |
| 200MΩ/1000V | 5.0~199.9 MΩ | ±(5%+5digital) |
| 2GΩ | 0.05~1.999 GΩ | ±(5%+5digital) |
| 20GΩ | 0.5~19.99 GΩ | ±(5%+5digital) |
| 200GΩ | 5.0~199.9 GΩ | ±(10%+10digital) |
| 2000GΩ | 50~1999 GΩ | Less than 1000GΩ ± (20% + 10 digital) (humidity ≤70%) |
| Anti-electric field interference ability | 2mA(50Hz) | |
| Timekeeping and alarm function | maximum value of stopwatch is 19 minutes and 59 seconds. 20 minutes for a cycle. The stopwatch will tell the time at these time points: 15 seconds, 60 seconds and every 60 seconds. When telling time, resistance readings hold for 5 seconds. If the measured resistance is below the lower limit of range, the reading is invalid and the instrument will continuously sound to give an alarm | |
| Display | three and a half bits LCD digital meter (three), respectively show test voltage, test resistance, test time | |
| Power supply |
10×1.2Vbattery(2000mAh Ni-MH rechargeable battery), total DC12V power supply
AC: 220V (50/60Hz) |
|
| Operating Conditions | Temperature:0~40ºC | Relative humidity:20~90% |
| Dimension | 315×240×155mm 3 | |
| Weight | 5kg | |