ST230 Telephone Line Tester is one portable and intelligent line fault tester which adopts advanced technologies such as intelligent CPU, IC & SMT technology. It integrates various kinds of functions such as telephone and line performance test to be the one.

Main Functions

● CID function, FSK/DTMF compatibility

● Dialing number display, caller ID

l Checking wire pairs

l Mute function

l Store phone number function

l Tone/Pulse Dialing

l Independently ringing user without passing through exchange

l Last Number Redial

Key Features

lDTMF applying to GB/T15279-94

lHigh voltage alarm

lLow voltage warning, automatic power off and energy-save design

lSmall size, simple operation