PowerGuard

Prevents expensive damage to three-rail electronics by actively detecting and suppressing any potentially damaging power surges from any three-rail transformer. Flashing red light lets operator know that system has detected damaging spikes and overvoltages. Two green lights show the voltage or signal strength your transformer delivers to the track. Ends uncontrolled horn blowing from ProtoSound engines run with Lionel Cab-1 Walkaround Throttle. Fast hook-up: just connect two wires to transformer outputs. Warning: QSI does not guarantee any QSI-designed sound and train control system against damage caused by excessive transformer voltage or power spikes unless PowerGuard is connected to the transformer output.