Functions:
Indentify the state in the working telephone line(clear,ring,busy).
Receiver the tone signal on the cables or wires(telephone line).
Track the cables or wires,and diagnose the break point.
Judge continuty of the cables or wires.
Send a dual alternating tone to the object cables or wires.
Specifications:
Audio signal: 1.5kHZ
Receiving frequency range: 100HZ-300kHZ
Battery supply: 9V (6F22) (Not Included)
Size:
Receiver: 238 x 43 x 26mm
Transmitter: 145 x 35 x 25mm
Package Includes: