Testo 552 Digital Vacuum Micron Gauge

The Testo 552 digital vacuum gauge can be utilized for the evacuation of refrigeration systems and heat pumps. Capable of measuring small absolute pressures accurately, the Testo 552 is powered off 2 x AA batteries and requires no sensor servicing.

The Testo 552 vacuum gauge allows the user to monitor the dehumidification of a system and the removal of foreign substances (including oils or foreign gases).The Testo 552 features a bright, backlit display with visual alarm and, via the maintenance free sensor, the Testo 552 has the ability to calculate water evaporation temperatures based on absolute pressure.

Powered by 2 x AA batteries, the 552 can operate continuously for up to 100 days (2400 hours). Featuring a tough construction, the Testo 552 has an IP42 rating protecting it from water and dust.