Greisinger gmh 3750 pt100 digital thermometer set calibration certificate greisinger mess set temp 2 the gmh 3750 pt100 high precision calibrated temperature measuring system that includes the gmh 3750 pt100 high precision thermometer the gtf 401 1 3 din immersion probe for liquids gases a compartmentalised carrying case and a certificate of calibration based on calibration points of 0 c 100 c 250 c br br b gmh 3750 pt100 high precision thermometer b br a robust hand held