With dry block temperature calibrator and the pressure calibrator, the vessel have necessary calibrated test equipment according to SOLAS and DNV on board. According to these regulations the test equipment for temperature and pressure must be recalibrated. This set includes a temperature hand held instrument, a temperature reference sensor and a pressure reference. The temperature hand held instrument have 2 different models : MH 3710 for standard calibration requirements or MH 3750 for highest accuracy requirements. With the temperature reference sensor TF 650-6-300, you can measure the actual accuracy of the dry block calibrator, and the pressure reference type D2, you can measure precision pressure. Recalibration of temperature calibrators is done with recalibration instrument type MH 3710 or MH 3750 and temperature sensor type TF 650-6-300. Recalibration of pressure calibrators is done with recalibration instrument type D2. Crew can make the recalibration on their own. Checking the recalibration set is very easy because only the small case has to be returned to manufacturer once a year.