Greisinger gmh 2710 g waterproof haccp digital thermometer teflon probe greisinger gmh 2710 g the gmh 2710 g is a waterproof thermometer with an attached pt100 probe that has a teflon handle and slim oslash 1 5mm insertion tip that are suitable for food applications according to haccp hazard analysis and critical control points the meter is used to provide accurate measurements for laboratories quality management and monitoring of production processes in applications such as food haccp