Littelfuse high temperature glass probe thermistors feature superior long-term stability and fast thermal response. Their small size and glass encapsulation makes them especially suitable for temperature measurement and control where space is limited and where extreme temperatures, corrosive atmospheres and⁄or harsh environments are encountered. Littelfuse glass probe thermistors have a wide range of applications within the HVAC⁄R, Industrial, Medical, Consumer Electronics, Alternative Energy, Telecommunications, Medical and Environmental Systems and Controls markets. Options: Non-standard resistance values and tolerances Two glass body lengths (.500" and 1.000")