This product is a portable car tire pressure measuring tool. Pressure is the most important indicator of automobile tires, higher or lower pressure will shorten the service life, and even dangerous. At any time monitor tire pressure is to ensure driving safety and reduce accident risk for tire burst.
Perfect for autos, SUVs, light trucks, motorcycles, car, etc.
Tire pressure monitoring principle
High precision pressure sensing device can process a real-time data acquisition for the tire, after AD module is converted into digital signal and processed by MCU (central controller), finally the measured data will be displayed on the LCD screen.
How To Know The Normal Car Tire Pressure
According to the different model or different car brands, tire pressure standard is definitely different. Generally it can be found by following:
a. Car Manual;
b. The tag on the side of cab door(close to B-pillar);
c. The drawer of cab door;
d. The small door of fuel tank;
e. Car tire pressure is close to the door pillar or on the fuel tank cover or side of copilot door

How To Use The Tire Pressure Gauge
1. Press button to start digital tire pressure gauge, then press again to select pressure unit PSI, BAR, KPA.
2. Aim the pressure gauge valve to the tire valve , press down by power to ensure no leakage, and keep two or three seconds, then what the LCD shows is the tire pressure values.
3. When you need to test again, long press button for 3 seconds to turn it off, and then again from starting the pressure gauge and select a pressure unit
4. Once you finish the measure job, long press button for 10 seconds to turn it off, or wait for 1 minute to turn off automatically

Pneumatic Unit Conversion Table
PSI BAR KPA PSI BAR KPA
5 0.35 35 55 3.75 375
10 0.70 70 60 4.15 415
15 1.05 105 65 4.45 445
20 1.35 135 70 4.85 485
25 1.70 170 75 5.15 515
30 2.05 205 80 5.50 550
35 2.40 240 85 5.85 585
40 2.75 275 90 6.20 620
45 3.10 310 95 6.55 655
50 3.45 345 100 6.90 690