Available in 12v, 24v, 32v
 Monitors Oil Pressure and Engine Temperature.  Activates a red light and sounds a loud audible buzzer on the warning panel if the oil pressure is low or the engine temperature is high.....the panel includes a mute button.
 This boat alarm kit, for a twin engine, includes two 20111 Low Oil Pressure Detectors and two 20116 Engine Overheat Detectors (bolt-on type that bolts on to engine block or engine head)
 NOTE: There are two types of Engine Overheat Detector.  See 20324
Panel Size  3-1/2 x 3