ST230F Telephone Line Tester

ST230F Telephone Line Tester

ST230F is the next generation of telephone line tester, which cans quick check telephone line fault points and positions with safety & multi-functions capabilities. It is improved on the override functions, allowing technicians to butt in on a live ADSL line to test POTS quality without downing the data service. At the same time, it has two-way hands-free amplified speakerphone. It also has functions of both monitor and high & low voltage protection, and so on. 

Main functions and key features

1. Telephone line fault checking, break line fault
2. DC, insulation test
3. Call the user as the common phone to check the user’s phone there is problem or not, can do dial, calling, receiving the call.
4. Monitor in high resistance
5. ISDN/ADSL identification
6. Hand free function(two speak ways, loudspeaker)
7. Calling number displaying in FSK and DTMF modes, dialing telephone number display in FSK and DTMF modes,
8. One Key override lockout function
9. Tone/pulse function
10. High voltage indication (data indicator will light)
11. As the cable tracker combined with assistant test cord.
12. Low voltage warning, automatic power off and energy-save design
13. Memory key(10 groups of 18 digits)
14. Li-battery can continuously work more than 12 hours