Senter ST220B Mini Telephone Line Tester Network Cable Tester
  • Senter ST220B Mini Telephone Line Tester Network Cable Tester

  • SKU:24193
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  • Price:$52.46
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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.

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.


- 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 (MΩ) 0~10

General specifications
- Ring distance (Km) ≤1
- Line break resolution (Km) ≤3
- Weight (kg) ≤0.22 D
- imension (mm) :146×54×37
- Battery (V): 9
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