Insulation tester ST230F

performancesafetycable

SENTER ST230F Handfree Telephone Line Checker Product Description Brief Introduction ST230F Telephone Line Tester is one portable and intelligent line fault tester, which adopts advanced technologies such as intelligent CPU, IC & surface mounted technology (SMT) technology. It integrates various kinds of functions such as telephone, line performance test and safety test to be the one. Main functions and key features 1. Telephone line fault checking 2. Monitor, ISDN/ADSL identification 3. Hand free function(two speak ways, loudspeaker) 4. Calling number displaying 5. One Key override lockout function Data lockout override function 6. Tone/pulse transfer function 7. High DC voltage indication 8. High AC voltage alarm 9. Low voltage self-checking, automatic power off and energy-save design 10. Memory key(10 groups of 18 digits) 11. Telephone functions(Dialing, Receiving, Redial) 12. Caller telephone number display 13. Telephone number storage and dial function 14. Mute function 15. Tester test (AC V & DC V test, Insulation test, Open line test, Earth insulation) 16. Call user & talk 17. Check wire pairs