Sensata Technologies 5011 series 1/2" hermetically sealed thermostat is designed to meet demanding shock and vibration requirements in air- or water-cooled engines and other applications. Sensata 5011 series thermostat is a RoHS compliant, positive snap action, single pole / single throw (SPST), hermetically sealed unit. 5011 thermostat is supplied with a grounded case construction and an additional terminal can be provided on the case for a positive ground lead or as an isolated device when the unit is insulated from ground. This fixed temperature switch is ideal for temperature warning or protection. Calibration is factory set and tamperproof.