Telephone Line Tester, Pocket Size, Easy Operation.

Telephone Line Tester is a multi-function tester, it is a new kind of line fault tester with safety. Besides the functions as a common tel line tester, it also has the functions of high voltage protection and dangerous voltage warning and so on.

Features:
1. 50 incoming 16 outgoing numbers.
2. Outgoing number and taking time record.
3. FSK/DTMF dual system.
4. Incoming/outgoing number checking, return dailing function.
5. Real date and week displaying, 5steps LCD contrast adjustable.
6. Hook on/off function button.
7. Redial the last dialed number.
8. In use light indicator and incoming call light indicator..