AUTOOL LM55 Digital HVAC Temperature Clamp, -20°C~150°C Thermometer Pipe Probe Test Clip for Heating and Cooling Systems Test, Hvac Tools

I was impressed with the value for the cost of this set of digital gauges. It is of good quality and sturdy. It was very easy to use for checking refrigerant levels and adding refrigerant. One thing I didn't like is that the hook for hanging it is kind of cheap and pulls all the way out and it did not come with an instruction manual. Other than that though it is a good value.

easy to use and great prices

I reviewed a previous machine I purchased for too early. I didn’t make the same mistake with this one. Had to send two of the Vevor machines back. I love this machine. It’s a work horse. It’s works as expected and does the job. It’s well built with an excellent design. Customer support actually cares. They are great from the beginning to the end. They even shipped the product early upon my request and followed up with me prior to delivery. You can’t go wrong with this machine.

If you know what you are doing, it is easy to use. Needs better instructions guide.

Works great, gives temperature of refrigerant instantly, simple to use.

Good quality

Works great for automotive and home AC units

I have to figure out how to operate cause there is no full details on how to use it.

So far I liked it up till I used it, got to a job as an Hvac tech hoses do not work. Don’t know weather they are for a different refrigerant but they did not work. I was under the impression it includes “clamps” for sub cool and super heat, fine that may be my fault, it advertises Bluetooth has no Bluetooth feature. No plug in for the clamps either pretty disappointing. Note: if you are a using them for regular gauges with out clamps (No super heat or sub cool) just for charging, pressure testing, vacuum then these are for you. Tip: if you service 410-a, 407c/r22 KEEP IN MIND THESE HOSES WILL NOT WORK THEY DONT READ AT ALL. Make sure you order separate hoses

Terrible tool. Can't see in day light.