Testo's 550 refrigeration system analyzer measures temperature and pressure in a matter of seconds, and calculates superheat and subcooling for 31 pre-programmed refrigerants. It's designed to perform both timed pressure drop tests and standing pressure tests required for proper commissioning of AC/R systems.
The Testo 550 features a two-way aluminum valve block with three 1/4" SAE connections, a built-in magnifying sight glass, two NTC temperature probes, and an easy-to-read backlit display. It's ideal for use in service, maintenance, and commissioning of all types of air conditioning, refrigeration, and heat pump systems including 16 SEER systems.
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