Customer Service:
Mon - Fri: 8:30 am - 6 pm EST


NSF P235-03

Temperature Mimicking Sensors

Devices covered in this Protocol are intended for use in any type of refrigerated equipment or refrigerated space including, but not limited to, processing plants, refrigerated trucks, storage refrigerators, display refrigerators, and residential refrigerators. TMS’s described in this protocol are not intended to monitor air temperature of the refrigerated location in which they are being used. TMS’s are not intended for use in open fruit and vegetable display cases. Device components and materials covered under other NSF or NSF/ANSI Standards or Criteria shall also comply with the requirements within. This Protocol is not intended to restrict new unit design, provided such design meets the minimum specifications herein. This Protocol does not contain safety requirements.

Content Provider
NSF International [nsf]


As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.