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ST220B Mini Telephone Line Tester Network Cable Tester Meter, US $45.48 – Picture 0
ST220B Mini Telephone Line Tester Network Cable Tester Meter, US $45.48 – Picture 0

St220b Mini Telephone Line Tester Network Cable Tester Meter

US $45.48

  • Wenzhou, ZJ, China
  • Jan 29th
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ST220B Mini Telephone Line Tester Application: ST220B is a compact telephone line tester combining basic line tester function, auto ring, calling subscriber, checking line pair and high voltage protection. It is rather a good portable, handheld tester to the lineman. Feature: Main Functions ? Telephone functions (Dial, redial, talk and hook) ? Fault tests (Insulation test, line break test and earthing test) ? Checking wire pairs ? Call subscriber & talk ? Pulse/Tone dialing ? Low battery check. Key Features ? DTMF applying to GB/T15279-94 ? High voltage alarm ? Low voltage check ? Last number redial ? Special durable test clamp ? Automatic power off and energy-save design ? Pocket size, simple operation Technical Specifications Insulation resistance test Range (M?) 0~10 General specifications Ring distance (Km)

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