Dwyer MDS-10 is a miniature pressure switch with a temperature range of 40° to 150°F (4° to 66°C). It features a polycarbonate housing and brass tab-type electrical connections for quick disconnections. With a voltage limit of 30 V or less, it can handle a resistive load. The pressure limit depends on the set point: <3.0 in. H2O = 8 psi, >3.0 in. H2O = 15 psi. It is a SPST normally open switch with two barbed ports for 1/8"-3/16" ID tubing. The gold contact switch allows for a maximum 40 mA resistive load, with a lifespan of over 20 million cycles. Suitable for air and compatible fluids on the "high" side. The diaphragm is made of polyurethane.