product description:
Features: Mini portable design tire pressure gauge keychain
Large LCD display for easy reading
High precision and repetition
Four kinds of unit for measuring pressure
Manual ON/OFF and auto power off
Specifications: Range: 3-150 psi or 0.20-10.0 bar or 20-999 kpa or 0.2-10.0 kgf/cm²
Display: 21*10 mm LED display
Power: CR-2032 3V lithium battery
Shell Material: ABS Plastic
Instructions: 1. Press the "ON/UNIT/OFF" button wait 3 seconds for "0.0" psi or "0.00" bar or "0.00" kgf/cm²
2. Press firmly the tire gauge with tire nozzle valve and make sure there is little air leakage
3. Hold for about 2 seconds and read pressure from the LCD Display Screen.
Helpful Hints: 1. Check tire pressure before driving when tires are cold
2. To clear the gauge, use a soft damp cloth. Do not immerse in, or spray with water or other liquid cleaner
3. In order to get a good seal, put the tire s air nozzle was up or off to the side. It s best when the nozzle s around the 6 or 7 o clock position so that you can firmly press the gauge straight down.
4. Standard Tire Pressures [Only for reference]: 30 to 35 psi for car; 50 psi in the front and 60 psi in the back for truck; 80 to 130 psi for road bikes, 30 to 50 psi for mountain bikes, 50 to 70 psi for hybrid bikes (1 psi = 0.0689476 bar = 413.68542 kpa = 4.2184173 kgf/cm²)
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