The Testo 552 is a digital vacuum micron gauge that has all the measuring functions you need for refrigerant systems and heat pumps. The 552 can determine the proper micron/temperature levels at which moisture is removed from the system by using its real time calculations. With the new Bluetooth feature the 552 can link to your smart phone or device.
Specifications
Absolute Pressure
Measuring Range
0 to 0.40 psi / / 0 to 26.66 mbar / 0 to 20000 micron
Accuracy
±(10 micron + 10 % of mv) (100 to 1000 micron)
Resolution
1 micron (0 to 1000 micron) 10 micron (1000 to 2000 micron) 100 micron (2000 to 5000 micron) 500 micron (5000 to 10000 micron) 5000 micron (10000 to 20000 micron)
requires iOS 8.3 or newer; requires Android 4.3 or newer; requires mobile end device with Bluetooth 4.0
Warranty
2 years
Battery Type
2 AA
Battery Life
50 hrs (without Bluetooth/backlighting)
Connection
2 x 7/16“ UNF
Interface
Bluetooth® 4.0 wireless technology
Parameter
mbar; micron; mmHg; Torr; inHg; inH20; hPa; Pa
Measuring rate
0.5 sec
Storage temperature
-4.0° to 122.0 °F / -20 to +50 °C
Weight
18 oz. / 500 g
Dimensions
10 x 6 x 2 in. / 250 x 165 x 55 mm
Operating temperature
14.0° to 122.0 °F / -10 to +50 °C
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