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Your cart is empty."testo 549 - Digital Manifold for accurate measurements Installation and maintenance of air conditioning, refrigeration systems and heat pumps has never been more convenient. With its durable, metal 2-way valve block, rugged housing, suspension hook and illuminated display, the manifold is ideal for harsh working environments. Store up to 60 refrigerants in just one instrument and accurately measure high and low pressure along with evaporation and saturation temperature. Optional temperature probes provide instant calculations of superheating and subcooling. Technical Data Temperature measuring range: -58° to +302°F / - 50° to +150°C Temperature measurement accuracy: ±0.9 °F / ±0.5 °C Pressure measuring range: -15 to 870 psi / -1 to 60 bar Pressure measurement accuracy: ±0.5 % of full-scale value Probe Connection: 3 x ¼” SAE Overload rel. (high pressure): 943 psi / 65 bar Vacuum measuring range: -15 to 0 psi / -1 to 0 bar 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 Refrigerant instruments: 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 System requirements: requires iOS 7.1 or newer; requires Android 4.3 or newer; requires mobile end device with Bluetooth 4.0 Scope of Delivery: ✓ testo 549 digital 2-valve manifold including batteries ✓ Certificate of conformity ✓ User’s manual"
Martin
Reviewed in Canada on February 24, 2025
A
Nicola90
Reviewed in Italy on June 9, 2024
Chi fa questo lavoro o si affaccia a questo mondo del lavoro non sbaglia a comprare questo manometro ,anzi compratelo duraturo nel tempo ve lo dice chi lo usa tutto i giorniPiccola pecca, per il prezzo almeno la scatola .
Customer
Reviewed in the United States on June 14, 2022
Will buy again
kkapity
Reviewed in the United States on March 2, 2022
This was my first set of digital gauges. Opted for them since this time I had to buy them rather than work providing them. Worth every penny just wish they came with hoses. These are pretty much the standard in the HVACR field these days.
S S
Reviewed in the United Kingdom on April 2, 2022
Works perfect
cybermandiant
Reviewed in France on March 19, 2021
Pour les mise en service et depannage clim ideal marque reconnue et tres robuste manquerai juste la malette mais elle est fournie avec le 550
Carrie N.
Reviewed in the United States on December 18, 2021
Seem to stand up to the abuse of daily use better than traditional gauges that are similar price. Hook is awesome it never slips of were you hang it. Old style were a nightmare that way. Traditional gauges are so inferior to these trust me I have seen it all
Customer
Reviewed in the United States on October 26, 2021
it was for my stepson who is a mechanic and he says the machine its nice its expensive but its good he says is very acurate not like the one he has from china and the hoses i ordered with this i ordered the cheapest ones from china because i didnt have enough money to order a better ones but we will see how long they last
Cliente
Reviewed in Spain on January 13, 2021
Super bien de verdat estoy mui contento
Jeff Whitehead
Reviewed in the United States on April 5, 2021
The item was delivered very fast,I haven't had a chance to use it yet but seems to be of good quality I will order temperature probe next.
Gerry P.
Reviewed in the United States on September 16, 2020
Best gauges I've ever owned. A great, easy to use product. You'll know it when you pick it up. People say the clamps break, I haven't had that experience. But having read that in the reviews, I baby them. This is an instrument after all, not the old dial gauges you're used to maybe, so a bit of handling care should be expected. I love having the temperature clamps, and that the meter will operate in so many modes you can see them in any mode you want. This was everything I hoped it would be. Yeah, I bought the Yellow Jacket hoses. Stick with a winner on that.
airman2091
Reviewed in the United States on December 7, 2020
I love these gauges. I finally go to try them out. Easy calibration and shows accurate pressures and temperatures. Well made.
t-bilt
Reviewed in the United States on October 4, 2018
This is a high quality instrument. I got it to work on a mini split my old analog gauges were in rough shape. This unit will do about anything you could ask of a gauge set. Especially when paired with a micron gauge.Features...60 refrigerant profiles stored in the instrumentRugged design and housing with 5 year warranty with registrationLarge 2-line backlit displayDigital accuracy performs more reliably than analog manifold gauge sets for more precise readingsMeasures high side / low side pressure and displays saturation / evaporation temperatures2-way valve block with three connections and sight glassProvides real-time superheat and sub-cooling with optional temperature probesApplicationsAir ConditioningRefrigerationPreventative MaintenanceTwo Thumbs UP!!!
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