| Measurement Functions | Ground resistance |
| Interface | RS232/RS485, HANDLER, USB |
| Standard Configuration | AC 5A~40A |
| Comparator | Upper and lower limit sound and light alarm |
| Protect Function | Over-voltage protection |
| Ground Impedance | 0 ～ 600mΩ
accuracy ±(2%× Read the numerical +5 dgt ) resolution 0.1 mΩ |
| Current Setup Range | AC 5A ～ 40A，accuracy ±(2%× reading +5 dgt ),
resolution 0.1A |
| Power Supply | AC 220V 50Hz
power <200W |
| Dimension & Weight | 250mm×120mm×320mm
10kg |
| Accessories | power cable
RS232 communication cable ATL900A test clamp |