testo 549 I Digital Manifold for air Conditioning, Refrigeration Systems and Heat Pumps

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.

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.

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!!!

Temp probs not included/ not capable of reading vacuum. Easy to read and to change freon choices.

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

I love these gauges. I finally go to try them out. Easy calibration and shows accurate pressures and temperatures. Well made.

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

Very nice gauge just what I need for my job, it got all the functions on it and good price