GW Instek

Instek Telephone Line Checker

SKU: 01BK201

  • Sale
  • Regular price $26.00


  • Quickly checks if the phone line is digital or analog, protecting your modem from damages
  • Detects over currents
  • Identify safe line, polarity, or open line
  • Line noise filter protection from RFI
  • Easy operation
  • Compact design for portability