LE LEMATEC Digital Air Pressure Regulator with Locking Valve for Air Slip Prevention, 1/4 NPT Inline Airflow Regulator Up to 160 PSI for Air Compressor, HVLP Spray Paint Gun & Pneumatic Tools (DAR03B)

Item comes with manual for detailed instructions, is able to connect with standard 1/4 inch NFT threads. However the lower adapter comes loose to push-fit the inner ring with screwed on pressure. Mechanics thread tape is needed to secure air leaks, although it became fussy and difficult to stay on as the outer NFT connection is not directly secured by the screw in, it is secured by the “differential pressure applied” by screwing it on. May be fixable by applying head to ring seal as it doesn’t come with a ring seal of its own. Other than that the functions are great and works better than originally thought. I have mine fixed with quick disconnects and reconnects to allow hose and attachments to be taken off and on. As well as an in-line filter for water and oil separation. The Psi adjustments work as well and to specification allowing lower output Psi and higher outputs as well as a button lock.

It’s really easy to use and reliable

I have this unit on an HVLP gun and also the same but non-locking adjuster unit in my Iwata LPH-80 for doing Cerakote. It works very well and is very well constructed. I am now only going to be using these Lematec gauges/regulators on all my air guns. Simple to use, and appears to hold settings accurately. I've gotten acetone on one of them, and accidentally submerged the other in water during cleanup. I know it's not recommended, but they both still work like on day one.

This product works well for what it is, but it’s not quite what it’s advertised as.. It’s a simple line gauge, and will not let you adjust the PSI to your tool accurately unless you adjust it while using the tool. In other words, it has no built in diaphragm, like a true regulator would/should.I really wanted to like this product but I’d have to waste air setting the psi. And as the tank gets lower, so does the psi reading in the meter.. So it just is not accurate at a professional level.If you’re ok with constantly adjusting it, this is an ok gauge. The digital read out is nice to have. But for me, ultimately I got frustrated with it and replaced it with a true line psi gauge with a diaphragm that allows you to raise and lower the psi to your tool without any air running through it to the tool..For reference, I got this for use with an sand blast cabinet. I cannot recommend it for this use-case. Maybe it would be better for a small etching air brush, though.

Absolute junk,finally got it to stop leaking and the airflow adjustment doesn’t work. No it’s not user error. Doesn’t matter what my compressor tank is at,it doesn’t regulate the air pressure.

This little gauge is pretty awesome. Some may say it doesn't exactly work with pressure standards but that may be because they are working with inferior compressors. With a large compressor and knowing how much tank pressure you have definitely helps when to stop spraying or using any tool. This gauge works well to limit and know the pressure at which you are using near the tool. I like it because if you have a sensitive tool or a job you want to stay at a specific air pressure for then this works awesome.

the battery seems to be lasting a long time. ordered a 2nd unit for back up. really helps with managing the spray gun air. small enough to use with out banging the project. I use a water filter before the regulator...

I like the fact that it's easy to read and easy to set and simple to install