Package Inlcuded:1 x Digital Tire Pressure Gauge (Battery Not Included)1 x Valve core controllerTire pressure is closely related to driving safety, so it's important to purchase a professional tire gauge!Detool Digital Tire Inflator 1. Short press button "UNIT" to turn on; Long press to power off. 2. When backlight is on, press "UNIT" to switch pressure unit; Automatic shutdown in 30 seconds if no any operation. Note: Require connecting to tire compressor before measuring 1.When measuring tire pressure, tire should keep cool; 2.For the standard tire pressure, requirements of automobile factories or tire manufacturers shall prevail. 3.Straight lock-on air chuck (Socket-style gas interface) can well connect with most of stem clamps of car tires; while for some special stem clamps, you can connect a 90 Degree Valve Extender(not included) onto the air chunk and it will help. Instructions: 1.Unscrew the lid of tire valve, which refer to the lid of gas nozzle on tire that used to inflate. 2.Fasten the air chunk of tire inflator and press it tightly on tire valve; pinch the air chunk, and till it perfectly connects with gas nozzle of tire, then release. Note: If they can not well connect, connect a 90 Degree Valve Extender(not included) onto air chunk and it will help, as different vehicles have different stem clamps. 3.Tire inflator will display tire pressure. If tire pressure is insufficient, deflate back to zero; If too high, press release valve and adjust to the proper tire pressure; If too low, inflate tire as follows: firstly, connect gas nozzle of air compressor with air intake of tire inflator; After that, pinch the inflatable switch (Trigger) and it can inflate. 4.Once done, press release valve and make the pointer back to zero. After that, switch the lid of tire valve back.
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