MDM-21PH027M3-F222 is an ITT switch. It is a high pressure transducer with a wide pressure range of 0-20,000 PSI. It is a single-ended, hermetically sealed switch with an isolated stainless steel diaphragm and body. It has an integral gold-plated electrical contact system that provides a low power, low pressure switch with enhanced dielectric strength and reliable performance over a wide temperature range. The switch is suitable for use in a variety of applications, including petroleum, oil and gas, chemical, and general industrial.