testo 552i Vacuum pressure measuring head | smart control by App

The testo 552i intelligent vacuum measuring head is fully app-controlled via Bluetooth. It delivers reliable measurement results, is robust and easy to use – the vacuum measuring head provides optimal support for vacuuming in refrigeration, air conditioning and heat pumps.

testo 552i – Wireless, app-controlled vacuum pressure measuring head

For wireless, tubeless vacuum pressure measurements on refrigeration, air conditioning and heat pump systems using just one connection port – without any refrigerant loss
The testo Smart App – gives you an overview of everything: Quick and easy detection of vacuum pressure via graphical displays in the app, alarms when critical values violate the configured thresholds
Automatic connection via Bluetooth: The probe connects to the testo smart app or to the Testo digital refrigeration pressure gauge, e.g. testo 557s, testo 550s – so you can also read the measuring values conveniently on the large graphic display of the refrigeration pressure gauge
Convenient, durable housing with IP54 protection
Probe bends at a 45° angle for easy installation at any measurement position
Continuously high performance in all conditions: You can rely on Testo's wireless, vacuum pressure measuring head.

See instructions from experts now:

@nooberhvac

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General specifications
Weight	142 g
Size	150 x 32 x 31 mm (L x W x H)
Operating temperature	-10 to +50 °C
Protection level	IP54
System requirements	Requires iOS 8.3 or later; Requires Android 4.3 or later; requires mobile terminal with Bluetooth 4.0
Product color	black/orange
Automatically turns off	10 minutes*
Battery type	3 AAA batteries
Battery life	39 hours
Connect	7/16 “UNF
Display	Bluetooth® 4.2
Storage temperatures	-20 to +50 °C

* when not connected via Bluetooth

Absolute pressure
Measuring range	0 to 26.66 mbar / 0 to 20,000 microns
Accuracy	± 10 micron + 10 % measurement value (100 to 1000 micron) ± (1
Resolution	1 micron (0 to 1000 microns) / 10 micron (1000 to 2000 micron) / 100 microns (2000 to 5000 microns) /
Overload	Absolute: 6.0 bar / 87 psi (Relative: 5.0 bar / 72 psi)