PowerTracker is a telemetry interface unit that allows remote monitoring of AC line voltage. It is ideal for use at broadcast transmitter sites so that the line voltage at the site can be accurately monitored via any transmitter remote control system. PowerTracker continually monitors the line voltage and creates a proportionate low-voltage DC sample which is sent to the remote telemetry system. PowerTracker can monitor single or 3-phase service at any voltage up to 480 volts. It is compatible with virtually any transmitter remote control system that can accept a telemetry input of either 5 or 12 volts DC. PowerTracker can be installed anywhere there is access to the AC power lines to be monitored. It should be installed by a licensed electrician or other qualified personnel.