Testo 549 - testo 550 . Digital manifold
The testo 549 digital manifold is a breakthrough value, making analog gauges obsolete. It precisely measures high side / low side pressure and instantly displays the corresponding saturation / evaporation temperatures for 60 refrigerants. With optional temperature probes, automatic superheat and sub-cooling calculations can also be displayed.
Details
Product Description
The versatility of 60 on-board refrigerant profiles means the testo 549 digital manifold is the only gauge that you need. The proven, rugged design will give you years of dependable service. With optional temperature probes the testo 549 digital manifold provides accurate, real-time superheat and sub-cooling at the push of a button. - Measures high side / low side pressure and displays saturation / evaportation temperatures
- 2-way valve block with three connections and sight glass
- 60 refrigerant profiles stored in the instrument
- Large 2-line backlit display
- Provides real-time superheat and sub-cooling with optional temperature probes
Delivery Scope
testo 549, digital manifold; including batteries, certificate of conformity, and user's manual.
Technical Data
Temperature |
Measuring range | -58° to 302 °F / -50 to +150 °C |
Accuracy | ±0.9 °F / ±0.5 °C |
Resolution | 0.1 °F / 0.1 °C |
Probe connection | 2 Temperature NTC measurement channels |
Pressure measurement |
Measuring range | -15 to +870 psi / -1 to +60 bar |
Accuracy | ±0.5 % Fs |
Resolution | 0.14 psi / 0.01 bar |
Probe connection | 3 x 1/4" SAE |
Overload rel. (high pressure) | 943 psi / 65 bar |
Vacuum |
Measuring range | -15 to 0 psi (indication) / -1 to 0 bar |
General technical data |
Weight | 37.39 oz. / 1060 g |
Dimensions | 7.87 x 4.29 x 2.48 in. / 200 x 109 x 63 mm |
Operating temperature | -4° to 122 °F / -20 to +50 °C |
Protection class | IP42 |
Product colour | Black |
Battery life | approx. 250h (display light off, Bluetooth off) |
Refrigerants in instrument | R114; R12; R123; R1233zd; R1234yf; R1234ze; R124; R125; R13; R134a; R22; R23; R290; R32; R401A; R401B; R402A; R402B; R404A; R407A; R407C; R407F; R407H; R408A; R409A; R410A; R414B; R416A; R420A; R421A; R421B; R422B; R422C; R422D; R424A; R427A; R434A; R437A; R438A; R442A; R444B; R448A; R449A; R450A; R452A; R452B; R453a; R454A; R454B; R454C; R455A; R458A; R500; R502; R503; R507; R513A; R600a; R718 (H₂O); R744 (CO₂) |
Refrigerants update by Testo Service | R11; FX80; I12A; R1150; R1270; R13B1; R14; R142B; R152A; R161; R170; R227; R236fa; R245fa; R401C; R406A; R407B; R407D; R41; Ra11A; R412A; R413A; R417A; R417B; R417C; R422A; R426A; R508A; R508B; R600; RIS89; SP22 |
Storage temperature | -4° to 140 °F / -20 to +60 °C |








1. who are we?
We are based in Zhejiang, China, start from 2013,sell to Southeast Asia(40.00%),Domestic Market(35.00%),Africa(15.00%),Mid East(10.00%). There are total about null people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Differential pressure gauge,Red oil differential pressure gauge,Pressure differential pressure transmitter,Level controller,Float switch
4. why should you buy from us not from other suppliers?
We have excellent and experienced foreign trade team and other teams to provide you with the best and professional services. Our products are sold all over the world as best-selling products and high reputation products. We aim to maintain a high standard
5. what services can we provide?
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