Testo 549 - Digital manifold

Product #0550

The testo 549 digital manifold offers many advantages in comparison with analog manifolds: the instrument will make it easier for you to work on refrigeration systems and heat pumps. With its integrated temperature measurement and automatic calculation of superheating/subcooling, you can now do away with additional measurements and manual comparisons (when using an optional clamp probe). You can also use the manifold for 60 current refrigerants.

Product benefits:

  • 60 current refrigerants stored in the instrument
  • Calculation of superheating and subcooling in real time (with optional clamp probe): saves you from having to carry
  • Temperature-compensated leakage test
  • Two temperature-compensated pressure sensors

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General Technical Data

Protection class



12 months

Battery life

250 h (without illumination, without Bluetooth®)


200 x 109 x 63 mm

Operating temperature

-20 to +50 °C

Refrigerants in instrument

60 profiles:; R508A; R417A; R407D; R422C; Ra11A; R422D; R412A; R401B; R290; R421A; R420A; R426A; R600a; R407B; R1234ze; R404A; R427A; R744 (CO₂); R507; R401C; R227; R437A; R125; R406A; R134a; R407A; R422A; R11; R422B; R161; R422B; R402B; R414B; R508B; update by Testo Service; R22; R438A; R1234yf; R12; R123; R401A; R409A; R407C; R408A; R14; R502; R32; R152A; R718 (H₂O); R402A; R434A; R410A; R600; R142B; R413A; R503; R416A; R424A; R407F; R13B1

Storage temperature

-20 to +60 °C


1060 g


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