| Working frequency | low frequency (815Hz), intermediate frequency (8kHz), high frequency (33 kHz), radio frequency (83 kHz)  |  
| Working mode | direct connection method, coupling method (caliper method), induction method | 
| Matching load | 5 ohms-3000 ohms | 
| Impedance display | 5 digits | 
| Overheating and over current | automatic protection | 
| Power output | low gear, middle gear, high gear. Max 10W | 
| Working frequency | low frequency (815Hz), intermediate frequency (8kHz), high frequency (33 kHz), radio frequency (83 kHz), Passive frequency 50Hz  |  
| Antenna mode | valley method (zero value mode), crest method (peak mode), step voltage method and clamp current method (A-frame)  |  
| Current indication | display the effective current value of the cable under test (unit: mA) | 
| Working temperature | -10ºC+55ºC | 
| Power indicator | graphic display | 
| Battery life | continuous work> 8 hours: intermittent work> 16 hours | 
| Signal strength indication | ladder diagram, digital range 0-999 | 
| Gain control | manual adjustment, dynamic range of 100dB | 
| Detection depth | the maximum detection depth is around 10 meters | 
| Maximum detection distance | The cable with good insulation can be up to 15km in the direct connection method  |  
| Depth measurement | press the depth key to display three digits, the maximum depth can be measured up to 10 meters  |  
| Accuracy | Low frequency: ±(1-5)%≤2.5m Radio frequency: ±(5-12)%≤2.5m |