Brand Name: SMART SENSOR Rechargable with Alarm buzzer / Vibration / Ear Phone
Signal frequency 13KHZ
Power: 1200mA li-Battery
Weight: 312g/Size 80*43*425mm: metal detector professional
Probe tips:: Sound / Vibration
Detectable distance:: 2.5inch/50mm
pinpointer / metal finder: industrial metal detectors
Maximum Explore Depth: 1.8 or 3m(1*1m Aluminum board)
Detectable Mode: Ground Balance/Discrimination
Explore Frequency: 7.0khz