The HD 2107.1  &  HD 2107.2 are protable instruments with a largeLCD Display. They measure the temperature using PT100 or PT1000immersion, penetration, contact or air probes. the sensor can be aPT100 3 or 4 wires, PT1000, Ni1000, Ni1000 or NTC2 wires. The probesare fitted with an automatic detection module, with the factorycalibration setting already being memorised inside