Sell ST230 Telephone Line Tester

Description

This Telephone Line Testeris a portable and intelligent line fault tester which is designed following human engineering theory with the appearance style like barbell, adopting 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. Inner chargeable NI-MH battery can works about one week after full charging; the shell is made of the new type of material and it is solid.
 
 Main Functions
 
＊Telephone functions - Dialing, Receiving, Redial      
- Incoming call number display 
- Mute function    
- P/T transfer function
- High DC voltage indication    
＊Tester test     
- AC V & DC V test     
- Insulation test   
- Open test  
- Earth insulation
＊Call user & talk    
＊Phone test    
＊Check wire pairs
＊Monitor function 
＊High AC voltage alarm      
＊Under voltage self-checking  
  Technical Specifications