App-controlled wireless vacuum probe - Testo 552i

Details

For wireless, hose-free vacuum measurements on refrigeration and air conditioning systems and heat pumps using just only one service port – with no loss of refrigerant
testo Smart App – get an overview of everything: Detect vacuum quickly and easily via a graphic illustration in the app, with an alert in the event of any critical values, e.g. through vibration of the smartphone
Automatic connection via Bluetooth: The probe connects to the testo Smart App or to the appropriate digital manifold from Testo, e.g. testo 557s, testo 550s – so you can also read measured values conveniently on your manifold’s large display
Convenient, robust housing with protection class IP 54
Built-in 45° angle for easy installation at any service port
Continuously high performance in all conditions: You can depend on this wireless vacuum probe from Testo – it combines proven Testo quality with excellent robustness

Absolute Pressure
Measuring range	0 to 26.66 mbar / 0 to 20000 micron
Accuracy	±10 micron + 10 % of mv (100 to 1000 micron) ±(1
Resolution	1 micron (0 to 1000 micron) / 10 micron (1000 to 2000 micron) / 100 micron (2000 to 5000 micron) /
Overload	absolute: 6.0 bar / 87 psi (relative: 5.0 bar / 72 psi)

General technical data
Weight	142 g
Dimensions	150 x 32 x 31 mm (LxWxH)
Operating temperature	-10 to +50 °C
Protection class	IP54
System requirements	requires iOS 13.0 or newer; requires Android 8.0 or newer; requires mobile end device with Bluetooth 4.2
Product colour	black/orange
Auto-off	10 min*
Battery type	3 AAA micro batteries
Battery life	39 h
Connection	7/16“ UNF
Interface	Bluetooth® 4.2
Storage temperature	-20 to +50 °C

* when not connected via Bluetooth