this tank pressure checker has the quick air release button on it. The gauge is about 400 PSI off, but it is consistence so just subtract the 400 for the tank pressure. Gauge works great and if you have a lot of tanks to check the quick air release button comes in handy. If you want to view or buy recommend you call or text as I only check Bookoo about once a day, my cell is 080-6497-0853
Posted in: Hunting & Outdoors
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