NOYAFA D3IN0580-B Underground Cable Wire Locator, Easily Locate Pet Fence Wires, Metal Pipes, Electrical Wires, Telephone Wire, Coax Cable

This device is mainly designed to allow users to track cables in the underground or in-side wall.
At no time should this device be used on utility mains powered devices or cabling connected to the utility mains.
If no Doubt do not use this device and call in a suitably qualified electricial contractor.

NF-816 Transmitter specification.
Tone frequency:200kHz
The Max length distance:1000 feet
The Max depth distance:2 feet
The Max. working current:Less than 70mA
Max. signal voltage:15Vp-p
Signal display:Tone
Max. signal voltage:15Vp-p
Battery type:DC9.0Vx 1pc
Dimensions (LxWxD):49 x 135 x 33mm

NF-816 Receiver specification
Frequency:200kHz
The Max. working current:Less than 70mA
Earphone jack:1
Battery type:DC9.0Vx 1pc
Dimensions (LxWxD):43 x 168 x 27mm