Isspro R8652 is an easy-to-install outside temperature gauge designed to provide drivers with an indication of the temperature conditions outside their vehicle. It comes with a mounting system and is intended for 12-volt DC use only. The sensor can be mounted using the included stick-on pad or screws, and its position is crucial for accurate readings. It should not be placed where airflow, water, ice, snow, engine, or road heat can affect it. The gauge features a red wire that connects to a fused and switched vehicle power source, usually the ignition.