Review on Advanced Digital Tire Gauge for Cars and Trucks - Slime 20475 Elite with Large, High-visibility Display by Demarco Vonk

I needed an accurate digital pressure gauge to measure the pressure in the tank of my reverse osmosis system. The reservoir bladder must be between 5 and 7 psi to force water out of the reservoir and through the system faucet. Every year when you change the filter you need to check the air pressure in the tank as it loses pressure over the year. Attempting to use a regular tire pressure gauge was very difficult with such a low pressure in psi and if you add too much air to the tank you risk damaging the hose and replacing the tank. This gauge showed a range of 5-150psi with a digital readout that captures the reading and is easy to read. On first reading, the gauge only showed 2.5psi in the tank, which surprised me since the description says it reads between 5 and 150psi. I put some air in the tank and the next reading was 4.5psi which again pleasantly surprised me. I added a little more air and the next reading was 7.5psi. So I bled some air and the final check showed 7.0psi. I waited 10 minutes, checked again and got the same readings. Also nice was that no air escaped during the test as there wasn't much air in the tank and losing a small amount changes the PSI quickly. Haven't tried it on my machine yet but assume it works perfectly. I also downloaded instructions from Slime on how to change batteries at the right time and found the batteries to be relatively inexpensive. I am very happy with the outcome of this product and would recommend it to others.