Features:
100% Brand new and high quality 
Judge whether the cable is connected or not.
Track the cable to find where the short circuit point is.
Receive audio signals in the network cable or telephone line.
Judge the telephone line state (free， ringing or in use).
Transmit audio signals to target network cable and keep track of its direction.
With LED lights indication.
Supplied with a specially designed storage bag for you to carry and protect the instrument.

Specifications:
Color: Gray & green
Power : 1 * DC 9V 6F22 battery (not included)
Size: approx. 21*8*5.5cm

Package includes:
1 x MASTECH MS6813 Transmitter
1 x Storage bag