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Silent Knight 7159 telephone Line Monitor, US $130 – Picture 0
Silent Knight 7159 telephone Line Monitor, US $130 – Picture 1
Silent Knight 7159 telephone Line Monitor, US $130 – Picture 0
Silent Knight 7159 telephone Line Monitor, US $130 – Picture 1

Silent Knight 7159 Telephone Line Monitor

US $130

  • West Warwick, Rhode Island, United States
  • Nov 11th
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Silent Knight SK-7150 Telephone Line Monitor constantly monitors telephone line DC voltage, detecting shorted or open telephone lines.  If the phone line is cut or shorted, after a 40 to 60 second delay, the 7150 will activate an LED indicator and provide a normally open or normally closed output.  The 7150 can be used to activate a local alarm or a backup means of communication to a central station. Satisfaction guaranteed! 14-day return.

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