New from Lionel, the Amp/Volt Meter for ZW controllers allows you to monitor readings on all four ZW channels using a digital LED display. Give each channel exactly the power you want by watching the readings increase or decrease as you move your ZW handles. Simple to install, the Amp/Volt meter fits conveniently on the top of your ZW controller for easy monitoring. Lionel puts you in control more than ever before with the new Amp/Volt Meter for ZWs.