| Function | Ground resistant test, Loop resistance test, leakage current test |
| Resistance Range | 0.01 Ω to 1200 Ω, Resolution 0.001 Ω, Accuracy ± 1 % ± 0.01 Ω |
| Current Range | 0.00 mA to 20.0 A, Resolution 0.01 mA, Accuracy ± 2 % ± 1 mA |
| Power Supply | DC 6 V Alkaline Dry Battery (1.5 V LR6 x 4) |
| Measurement Method | Mutual induction |
| Clamp Diameter | 2.1 in x 1.2 in (55 mm × 32 mm) |
| Clock Function | Have |
| Ω+A Synchronized display | Ω+A same screen display |
| Display Mode | 4-digit LCD display, black screen design |
| LCD Dimension | 1.8 in x 1.1 in (46 mm × 29 mm) |
| Sampling Speed | About 2 times or second |
| USB interface | With USB interface, software monitoring, storage data can be uploaded to the computer, save the print |
| Communication Line | USB communication line 1 |
| Data Storage | 500 Groups, the symbol “MEM” gives indication, “FULL” mark will flash to indicate the memory has been full |
| Data Review | “MR” symbol indication when reviewing data |
| Overflow Display | Exceed measurement range overflow function “OL” symbol display |
| Interference Test | Automatic identify interference signal, “NOISE” symbol indication when the interference current is large |
| Alarm Function | Alarm when the measured value exceeds the alarm setting value |
| Battery Voltage | Real-time display of battery power, reminding timely charging when battery voltage is low |
| Automatic shut-down | “APO” instruction, automatic shutdown after 5 minutes boot |
| Power Consumption | 50 MA Maximum |
| Insulation Resistance | 20 Ω or more (500 V between circuit and outside) |
| Pressure Resistance | AC 3700 V or rms (between circuit and outside) |
| Working Temperature and Humidity | 14 °F to 104 °F (-10 °C to 40 °C), below 80% RH |
| Meter Dimension | 3.3 in x 2.2 in x 11.2 in (85 mm × 58 mm x 285 mm) |
| Weight | 41.6 oz (1180 g) (with battery) |
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