... ,1k Mini Sensor,8k Mini Sensor,A Frame Receive frequencyØ Active frequencies:500Hz, 1kHz, 8kHz, 33kHz, 66kHz, 93kHzØ Passive frequencies:power ... Pipe detection modeØ Intelligent Peak Method (Wide): Suitable for active detection.Ø Peak Method: Suitable for passive detection.Ø Narrow Method. Ø Null Method.Cable Identification ...