The pressure measuring device is a robust instrument designed for daily use in refrigeration systems and heat pumps to determine pressure and temperature. Measurements are taken using the included refrigerant hoses and two NTC clamp temperature sensors. By simply plugging in or screwing on, all measurement parameters can be captured simultaneously. The metal 2-way valve block with three connections and three hose holders allows for quick and easy operation. The 83 preloaded refrigerants can be quickly selected and are visible on the measurement screen. During measurements, the hanging device ensures secure attachment. The device is powered by four 1.5V AA batteries. It is excellent for commissioning, servicing, and maintenance. Additional features such as the automatic heat pump mode, which eliminates the need to swap refrigerant hoses, and the temperature-compensated density testing function make working with refrigeration systems and heat pumps very straightforward.