Tel line tester is a new kind of line fault tester with safety and multi-functions capabilities
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
Main functions:
Dialing, talk and hook
Checking wire pairs
Test insulation or break faults of the line
Pulse/tone switch
Key features:
DTMF applying to GB/T15279-94
High voltage alarm
Low voltage warning
Last number redial
Special durable test clamp
Automatic power off and energy-save design
Pocket size, simple operation