PRO12-48M ProPower's 36 Volt Battery Indicator, Meter for EZGO, Yamaha, Club Car - Golf Cart For use on all lead acid batteries including Exide, Trojan, Interstate and private label brands Check compatibility before ordering. See Description below. Normally Open and Normally closed internal relays with 200 ma capability Fits 2" cutout. Outside diameter 2.25". Can be connected all of the time or switched on and off.