Instead of adjusting the air flow at the compressor, Astro Pneumatics’ digital flow regulator screws right onto your spray gun or other air tool to precisely control the flow of air. Love it or hate it, instead of a analog gauge it uses a digital readout.
Constructed with a mirror-plated finish, the regulator’s electronics are sealed and the display is behind impact-proof glass. Unfortunately this also means the battery’s not replaceable, but the display shuts off 45 seconds after you press the button to give the battery a life expectancy of 5,000 readings.
You connect the diaphragm regulator to your supply at the 1/4″ NPT inlet, and the device regulates pressures from 2.5 to 160psi. What I don’t exactly understand is why they call it a flow regulator when it sounds like it’s actually regulating pressure?
As with most tools there’s always the Harbor Freight equivalent at about 1/3 the price. The Astro Pneumatics regulator runs about $40, while you can pick up the Central Pneumatics knock-off for $12.