 
                            | Impedance   | 25/50/75/100/ohm | 
| Impedance Resolution | 5% | 
| Distance | |
| Measurement Range | 15m-2000m | 
| Resolution | 1m | 
| Accuracy   | 1m | 
| Others | |
| Dimension | 190mm×80mm×152mm | 
| Weight | 600g | 
| Working temperature | -10℃~+50℃ | 
| Storage temperature | -20℃~+70℃ | 
| Display | 128×128LCD(With back light power source) | 
| Battery | 7.2V 1.8AH Ni-MH batteries | 
| Charger | AC  90V~240V 50/60Hz DC 9V-0.7A | 
| Working time | average 7~8 hours(Full charge) | 
| Charge time | More than 12 hours | 
