ST220-Tel Line Tester

ST220 – Telephone Line Tester

Main Functions

  • Dialing, talk, hook
  • Checking wire pairs
  • Test insulation or break faults of the line
  • Pulse/Tone switch

Key Features

  • DTMF applying to GB/T15279-94
  • High voltage alarm
  • Low voltage warning
  • Last number redial
  • Special durable test clamp
  • Automatic power off and energy-save design
  • Pocket size, simple operation
Category: .

Product Description

ST220 Tel Line Tester is a new kind of line fault tester with safety & multi-functions capabilities. Besides the functions as a common Tel Line Tester, it also has the functions of high voltage protection and dangerous voltage warning, etc.