Review on Accutire MS 4021R Digital Pressure Gauge by Derek Faseworld

Works well but is very fragile. If you sit or step on it, it's history. Too bad they didn't make the plastic case a little thicker. Just be gentle with it when you use it. You can't throw away your toolbox, it will go bad. SECRET OF THE BATTERY. I have purchased three of these gauges and all three have been DEAD BATTERY and FIXED. When buying these measuring devices, make sure that you buy particularly high-quality batteries.