Testo 549 Digital Manifold

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  • Regular price $199.00


Testo 549 Digital Manifold

The Testo 549 Digital Manifold Kit includes everything you need to replace your analog refrigeration gauges. The 549 is a fully digital refrigeration system analyzer, accurately displaying high side and low side pressure instantly. Simultaneously the display will read saturation and evaporation temperatures, giving you a full picture of system performance at a glance. The Testo 549 includes a 2-way valve block with three connections and a built in sight glass. With 60 common refrigerant profiles built into the instrument, you can be confident that the 549 analyzer can handle any system you come across, from mini splits to commercial work. 

Optional pipe clamp probes plug into the main unit and allow the Testo 549 RSA to calculate and display superheat and subcool in real time. This reduces both human error and time spent making measurements and calculations. (See also the Testo 550, which includes the clamp probes.) 

The Testo 549 manifold includes a bright backlit display that is easy to read in a variety of lighting conditions. The housing has been redesigned over pervious versions, adding a partial metal frame and increasing the rubber surfaces on the perimeter. The analyzer now carries an IP42 rating as splash proof, and can stand up to light rain. Running on four AA batteries, the Testo 549 can operate for up to 250 hours of service.

Key Features

  • Measures high side and low side pressures
  • Displays saturation and evaporation temperatures
  • 60 refrigerant profiles stored in the instrument
  • Pressure drop leakage test
  • Drop resistant and splash proof housing

Warranty Information

The Testo 549 Digital Manifold carries a 5-year warranty.

Product Specs
Specification Range Resolution Accuracy
Temperature -58 to 302 °F (-50 to 150 °C) 0.1 °F (0.1 °C) ±.9 °F (±0.5 °C)
Low Pressure -14.7 to 870 psi (-1 to 60 bar) 0.1 psi (0.01 bar) ± 0.5% full scale
Vacuum -14.7 to 0 psi (-1 bar to 0 bar) 0.1 psi (0.01 bar) n/a
Low Pressure Overload 940 psi (65 bar)
Display 2-line LCD screen
Storage Temperature -4° TO 140° F (-20 to +60 °C)
Operating Temperature 14° to 122° F (-10 to +50 °C)
Battery Life 250 h (without backlight)
Dimensions 7.9 x 4.3 x 2.5 in (200 x 109 x 63 mm)
  • Testo 549 Digital Manifold
  • Four AA batteries
  • Calibration certificate

Free Shipping


Our policy lasts 30 days. If 30 days have gone by since you received purchase, unfortunately we can’t offer you a refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.