Thunder 2.5-30V Dual Volt Gauge with Switch

A compact dual voltage meter ideal for monitoring twin battery installations, this switch is ideal for use in 4WD and caravan applications, and can be used to monitor a trailer breakaway battery. Pre-wired for easy installation, the panel mount design is ideal for mounting on a vehicle’s dashboard or any flat surface allowing the user to monitor their dual battery system from a convenient location. A sharp and crisp blue LED display allows you to comfortably monitor the voltage of your batteries.