The new Viking LVR-1 is designed to augment a security system by monitoring analog phone lines and measuring any voltage drop. This drop is programmed to activate relay contacts that signal a nonworking phone line. When the voltage on an analog phone line monitored by the LVR-1 drops below 2 volts, the LVR-1 begins a countdown timer. This variable-length timer can be programmed to avoid false alarms. Once the threshold is reached, two onboard relay contacts activate signaling connected devices of a nonworking or disconnected phone line.

This same variable-length timer is also used to prevent multiple alert signals should the line go in and out of service.

The LVR-1 can be paired with Viking’s auto-dialers, tone generators and lights for a comprehensive alert system. It can also be used to switch telecom devices with a backup phone line.