testo 550i – Remote and accurate measurements via App Installation and maintenance of air conditioning, refrigeration systems and heat pumps has never been more convenient. With its durable, metal 2-way valve block, rugged housing, suspension hook and extremely compact format, the manifold is ideal for harsh working environments. Keep your refrigerants up to date and accurately measure high and low pressure along with evaporation and condensation temperature. The automatic connection to Bluetooth probes achieves flexible and easy measurement of a variety of parameters. Operated via app, the wireless HVAC instrument offers remote measuring and monitoring of data with a clearly structured visualization. Results can quickly be stored and sent directly from the job. Technical Data Temperature measuring range: -58° to +302°F / - 50° to +150°C Temperature measurement accuracy: ±0.9 °F / ±0.5 °C Pressure measuring range: -15 to 870 psi / -1 to 60 bar Pressure measurement accuracy: ±0.5 % of full-scale value Vacuum measuring range: -15 to 0 psi / -1 to 0 bar System requirements: requires iOS 7.1 or newer; requires Android 4.3 or newer; requires mobile end device with Bluetooth 4.0 Scope of Delivery: ✓ testo 550i including instruction manual, calibration protocol and batteries