... test more accurate, more reliable, cost-effective. First use please take off the battery place insulation2. The ... does not contain the number seven battery), the use of "Light" switch control.3. Rescue hammer: ... . Streamline appearance design, more elegant.Method of use:1, start tire pressure gauge, on display as ... /CM2 = 98.0 KPA3, this product will be in half a minute later automatic shutdown.Note: each ...