Accurate: The testo 552i achieves precise deep vacuum measurements down to single digit resolutions and provides notifications when the evacuation target is met | Easy-to-use: The device is equipped with a built-in 45 angle for convenient installation and rugged IP 54 certified housing, which makes it extraordinarily compact and reliable | Clever: For the purposes of wireless vacuum measurement, the testo 552i automatically connects to digital manifolds and can be used via just one service port and no loss of refrigerant | Efficient: The gauge identifies vacuum in a rapid and easy manner and can display data on the digital manifold screen and in the testo Smart App in real time | Smart App: Take advantage of clearly visualized documentation from a smartphone or tablet. Remotely operate service and maintenance tasks and send results directly from the job site

testo 552i Accurate, app-controlled vacuum measurements The testo 552i Micron Gauge measures vacuum via just one service port and with no loss of refrigerant. Its handy, robust and clever design support HVAC technicians with numerous intelligent features like the graphic display of measurement data in the testo Smart App or on the manifolds display. Its smart Bluetooth integration allows for data to be stored and evaluated reliably and efficiently, thus saving precious time and resources. testo 552i: Measuring range: 0 to 0.39 psi; 0 to 26.66 mbar; 0 to 20000 micron Accuracy: (10 micron + 10 % of mv) (100 to 1000 micron) Protection class: IP54 Resolution:1 micron (0 to 1000 micron) ; 10 micron (1000 to 2000 micron) ;100 micron (2000 to 5000 micron) Battery life: 39 hours Battery type: 3 x AAA micro batteries Connection: 7/16 UNF Measuring range: 0.5 sec Weight: 142 g Dimensions: 150 x 32 x 31 mm Operating temperature: -10 to +50 C Storage temperature: -20 to +50 C System requirements: requires iOS 11 or higher; requires Android 6 or higher; requires mobile end device with Bluetooth 4.0 Scope of delivery: 1 x testo 552i micron gauge...