Review on 🔍 Manometer - RISEPRO Digital Air Pressure Meter and Differential Pressure Gauge - HVAC Gas Pressure Tester by Alan Massey

I just calibrated my flow-through propane water heater with this gauge. It seemed to work well and accurately. Maybe it deserves four stars because it's so cheap. BUT the cheapness shows in the fact that it took me 10 minutes of struggle to fit the 9 volt battery. The battery wires are too short due to the shape of the cavity for the battery to sink properly into the cavity. Either the cables need to be made longer, or relief cuts need to be made in the housing itself for the cables and battery harness. Too many problems for something that should work out of the box. If I ever use this again I will take it apart and cut out the necessary reliefs. At the moment, both the battery and the cables are wedged into the cavity as they fit, and the door is pressed against them and protrudes. The only reason he stays is because he has a screw. Very annoying. Again, it's cheap and works, so that's good. But the battery situation is a pretty silly form factor issue that shouldn't even be an issue - even in the cheapest versions of the tool (which it isn't).