USD$ 12.48 (Dropshippers can also enjoy wholesale prices.)
Check continuity of the cables or wires.
Track the cables or wires, and diagnose the break point.
Identify the state of a working telephone line (clear ring, busy).
Send a single solid tone or a dual alternating tone to the object cables or wires.
Send tone frequency: 1.5kHz.
Receive frequency range: 100 ~ 300kHz.
Power supply: 6F22 (9V).
Receiver size: 238mm x 43mm x 26mm.
Emitter size: 145mm x 35mm x 25mm.
Receiver weight: 106g (including battery).
Emitter weight: 114g (including battery).
1 x Sender
1 x Receiver
2 x 9V Battery
1 x Bag