Low which are, Pressure switches a simple electro, Mechanical device operating on the following basic principle when a change occurs in pressure on low pressure side of an it moves, Elastic diaphragm transmitting a force to a pre, Calibrated snap switch. Diaphragm motion is resisted by a calibrated spring inbuilt in the micro switch that determines the selection of the switch. This electric switch can be utilized to initiate or fans etc, Cease motors. The detailed technical needs of the switch are given as parameter description remark body glass filled polyester diaphragm polyurethane or consistent with needs switch micro switch snap action pre calibrated spdt normal switch action normally closed or open as required pressure range 2 psi to 5 psi with differential 3 psi, /, 0. 25 % pressure at transition to open circuit 3 psi, /, 0. 25 % operating temperature, 400 c to, 850 c to specify with order maximum pressure 5 psi electrical rating 0. 1 a at 125 v ac to 25 a at 125 vac application non, Corrosive fluid 3/8 inch process attachment bsp / 1/4 bsp