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1/4in Digital Regulator is rated 3.0 out of 5 by 23.
Rated 4 out of 5 by from How to replace the internal battery Like the other guy said this really isn't a regulator it is a needle valve that controls the amount of air going thru the needle valve seat. So when your battery dies you can split the case at the seam using an exacto knife. The battery is a CR2032 that you can buy anywhere. Slide the one battery out and the new one in. Then some RTV on the edges of the case and your ready for a few more years. It works OK with my DeVilbiss StartingLine gun that is pretty much an air hog.
Date published: 2015-01-08
Rated 3 out of 5 by from Not a pressure regulator This unit is not a pressure regulator but an air flow valve. I have bought two of these and they do not regulate pressure. I work in the process control field and I can't figure out how they could make a quality regulator in such a small unit that can take 90 PSI at the input. Fact is, it is a throttling valve. It reads pressure OK but that is it. Also the catalog says it is made out of aluminum. It isn't, the body is made from some kind of composite plastic. The catalog also says that the fittings are 1/4 NPT. They aren't, the threads are not tapered but are a straight thread and the threads are not cut very deep. I had to shop around to find a pneumatic connector that would work well. I also had to use plenty of Teflon tape to seal the threads. Anyways, it does indicate pressure well even though the display does not stay on very long. I ended up adjusting the pressure at the compressor.
Date published: 2013-09-30
Rated 1 out of 5 by from do not buy this I used it one time and it worked great. Used it a second time and Err came up on the screen. Was not working and couldn't get it to work. Called Eastwood and they replaced it quickly. Unfortunately the second one they sent me didn't work at all. Opted for my money back Wichita eastwood was very helpful in doing. I can't recommend this product from the experience I've had.
Date published: 2015-05-01
Rated 1 out of 5 by from Don't buy until you read reviews Waste of money and shipping costs. This is a digital pressure gauge that can regulate flow only. Not what I was looking for. I wanted a digital regulator that regulates pressure. This is a play on terminology and I have no use for it at all. Putting this on the end of my spray gun is like taping a yard stick to it and having something less flexible at the hose connection. I tried not to put rating, it should go into minus numbers when it is worthless and you paid money to get nothing.
Date published: 2015-11-28
Rated 2 out of 5 by from Worked for five minutes Regulator worked for 5 minutes of use.
Date published: 2013-06-18
Rated 3 out of 5 by from not really happy with it when i recived my regulator it was more expensive than advertised now . it cost 39.00 i found it hard to read as it dosent stay on very long . and it didn't my iwata lph 50 ./ g-6 gun . i think my next regulator will be a standard pressure guage.
Date published: 2011-03-28
Rated 3 out of 5 by from digital regulator for spray gun very disappointed that the outlet is as choked down as it is. I don't understand how this would be effective with an HVLP spray gun.
Date published: 2011-05-25
Rated 4 out of 5 by from great except I really like the readout, but i wish it would stay on a little longer, say 1 minute. I like the fact it is a diaphram regulator and the swivel fitting, I just wish it could deliver more air. Doesn't work well with my SATA HLVP which uses about 14 cfm of air. Haven't tried it on my RP. Works well on a standard gun though. Would probbly work good on a IWATA HLVP though as they don't require as much air.
Date published: 2010-01-26
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Asked by: SRSYLS
This regulator is good from 0-160 with an accuracy of +-1 PSI.
Answered by: S Church
Date published: 2017-01-16

Is 160psi the max input pressure or the max regulating pressure? Is 175psi input too high for this?

Asked by: Boas
160 is the max regulating pressure.
Answered by: S Church
Date published: 2017-01-16

This Eastwood 1/4" Digital Regulator can be use with any spray gun?

Asked by: Clinton Snow
This regulator can be used with any air tool in need of regulation.
Answered by: S Church
Date published: 2017-01-16

Can this regulator be used to regulate the inflation of tires?  Say I set it at 30psi, will tire only inflate to 30psi?

Asked by: Speedster
This gauge is not designed for setting tire pressure. It is designed for air tool regulation.
Answered by: S Church
Date published: 2017-01-27

How do you change the battery? There is no obvious way to open it. How do you do it?

Asked by: Moonring
You don't. Its a disposable regulator
Answered by: SeanA
Date published: 2017-01-16

Can I use this  regulator to measure water pressure?

Asked by: misha
No, these regulators should be used for regulating air pressure only. They are not built to regulate water pressure.
Answered by: MikeL
Date published: 2017-01-16
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1/4in Digital Regulator

Item #51559 Brand: Eastwood

Digital accuracy for Concours and HotCoat guns; measures to 160 psi


Maintain accurate line pressure with a 1/4" Digital Regulator that's affordable!

  • 0-160-psi gauge
  • Accurate to 1.0 psi
  • Large LCD digital readout
  • Locking adjustment knob

Eastwood's digital air regulator is a lightweight and compact unit that's ideal for Eastwood Concours and HotCoat Powder-Coating guns.

More info...

About 1/4in Digital Regulator

Go digital without breaking the bank! Eastwood's digital air regulator makes it easy to adjust and maintain line pressure with accuracy. Easy-to-read digital gauge has a battery-saving internal motion sensor that automatically turns the gauge off when not in use. The aluminum-bodied regulator includes one male and one female ¼” NPT connectors. Imported.


Always wear eye, skin and respiratory protection when painting or power-coating.

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