ITEM NAME:Universal 2'' 52mm Water Temp Gauge Electronic Digital Temperature Meter DC12V Description: Use 316L stainless steel, can be used for a long time, can be used in wet, acid and alkali.1 Piece Boat water temp gauge. To enable the gauge to work even under strong vibrations, there is a snap with the harness connector, which is the best and strongest connection. Storage temperature :-40~+85℃.