ETENWOLF Pressure 20 120PSI Calibrated Stainless Review

HIGH ACCURACY--Every ETENWOLF's pencil tire gauge is calibrated to ANSI B40.1 Grade B, ANSI means it is a standard made by American National Standards Institute, Grade B means commercial gauge, it is accurate to 2% of span in the middle 50% of range and 3% of span in the lower and upper 25% of range. Each of ETENWOLF pencil tire pressure gauge is manually calibrated and has its unique calibration number printed on the pencil. WIDER RANGE--ETENWOLF's tire gauge offers 2 pressure ranges: 10-50PSI, 20-120PSI for all types of vehicles. 10-50PSI mainly for cars, the 10-120PSI for heavy duty trucks, RVs, bicycles and more. In general, the wider the range is, the less accurate the gauge is, so we combined these 2 ranges to satisfy the accuracy need and the wide application need in the mean time. With 2 tire gauges, you are able to put one in your car, one in your bike bag. ALL METAL--ETENWOLF tire gauges are made of all solid metal, zinc alloy head and stainless steel body, they are durable and can be used for many many years unless you lose them. DEFLATION--You can also use ETENWOLF's tire gauge to deflate tires when the tire pressure is over. BONUS CAPS--ETENWOLF even offers 3 cases of tire caps, each containing 8 valve stem caps, so they can be conveniently stored in your car's glove compartment. And these are not just any old caps, they have a small, red washer in each cap which will really seal the valve stem preventing air from escaping and any dirt and water from getting in. You might have 3 cars or bicycles, so you can put one case in each car or bike in case you lose them.