Review on 🔍 DANCO Gas Test Gauge 0-15 psi at 1/10 Increments, Chrome-Plated: Accurate and Reliable Pressure Measurement for Gas Systems (94352) by Russell Robertson

Easy Installation. It's a 3/4" female thread, I also have a fitting, I believe it's 1/8". Anything under 1psi is a guess, it only starts at 1/2psi, you might think it's not working if you get a pressure under 1/2psi, which confused me, if the device worked it was the the needle barely moved below 3/4 psi so don't return, it's low pressure. If you need accuracy below 1 PSI, you are better off with another model. Good price, sufficient for study, although I have it permanently installed in the gas line after the shut-off valve, as I can't be sure if prolonged use is reliable, I only turn it on to check the pressure when I leave to the gas line, if you don't need a device for 24/7, use it after the shut-off valve for safety.