Description:Measurement of high and low pressureLow refrigerant loss – since no hoses are required for measurementsMeasurement data displayed in the form of a graph or table, and sent via testo Smart Probes AppProblem-free application at measuring points that are a long distance apart thanks to Bluetooth® range up to 100 mThe professional and compact testo 549i high-pressure gauge can be controlled via the testo Smart Probes App using your smartphone or tablet, and is ideal for carrying out servicing and troubleshooting on air conditioning and refrigeration systems. The App also enables evaporation and condensation temperatures to be calculated automatically.Pressure measurement Measuring range: -1 to +60 bar; Accuracy: ±0.5 % of fsvResolution: 0.01 bar; Probe connection: 7 / 16  - UNF; Overload rel. (high pressure): +65 barOperating temperature: -20 to +50 °C Storage temperature: -20 to +60 °C Accessories: TESTO 549i Wireless Refrigeration Pressure Probe with Smart Bluetooth Technology