Review on 🔍 Optimized for SEO: Fieldpiece SDMN6 Pressure Switch Tester by Troy Arnold

Works great as a pressure gauge and the pressure switch tester is great too. I'm an HVAC technician and use mine almost every day. Solidly built and the magnet on the back is great for hands-free use. If you buy one and test the pressure switch, use the "Hold" button and be patient. Sometimes the pump can take a minute to settle before pumping, and a few times when I first started using it I impatiently hit the "up" button a couple of times and then the pump kicked in and suddenly you're walking through a 10 inch toilet and wondering what happened. Therefore, when checking the pressure switch, be patient and use the "Hold" button. Pressure switches don't fail all that often, but with a tool like this in your pocket you can figure out if your problem is a pressure switch or something else. This also comes with a bag containing all the hoses and nozzles for testing pressure switches, gas valves and duct static pressure testing.