testo 552 – Vacuum Gauge

Product Descriptions
1111The testo 552 is a digital vacuum measuring instrument for the evacuation of refrigeration systems and heat pumps. It measures even the smallest absolute pressures and provides highly precise information on the status of the dehumidification of a system (removal of foreign substances, incl. oils or foreign gases).
1111The testo 552 is the only digital vacuum measuring instrument whose absolute pressure sensor, in contrast to other sensor technologies, no longer needs to be serviced, and still provides highly accurate measurement results. Thanks to the battery life of up to 2400 hours with two conventional AA batteries, you can use the testo 552 in continuous operation for 100 days without changing the battery. Its robust construction makes it suitable for daily use, and protects from dirt and water.
– Highly accurate and reliable measurement results
– Maintenance-free absolute pressure sensor
– 2400 hours’ battery life (100 days’ continuous operation)
– Measurement of evaporation temperature H2O
– Optical alarm when limit values are exceeded
– Extremely robust and resistant to water and dirt (IP42)
General technical data
– Dimensions : 250 x 165 x 55 mm
– Operating temperature : -20 to +50 °C
– Protection class : IP42
– Battery type : 2 AA
– Battery life : 2,400 h (approx. 130 h with backlighting activated)
– Connection : 2 x 7/16“ UNF; 1 x MiniDIN (connection to testo 570)
– Parameter : mbar; micron
– Measuring rate : 0.5 s
– Storage temperature : -20 to +50 °C
– Weight : 500 g