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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.
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) |
Overload | absolute: 87.0 psi / 87 psi / absolute: 6.0 bar / 87 psi |
General technical data
Protection Class | IP42 |
System requirements | 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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