Features:
1. 6 Alarm Modes: In order to protect the safety of the driver and passengers, the TPMS tire pressure monitoring system can immediately monitor tire leakage / excessive air pressure / high temperature. With six alert modes, you can take care of your driving safety anytime, anywhere. And it is suitable for passenger cars, off-road vehicles, commercial vehicles, MPV, SUV, minivans and trucks.
2. Solar or USB Charging: The tire pressure monitoring system receiver itself has a solar panel and a 450mAh large capacity lithium battery. The sensor battery of a car tire pressure monitoring system can last for 2 years and solar and USB can be recharged, so there is no need to replace the sensor battery first. The cigar box does not interfere, so it can be used normally on sunny or rainy days.
3. Easy to Install: The external TPMS buzzer sounds by detecting the temperature and pressure of four tires simultaneously. The tire pressure monitor sensor has an IP67 rating, so there is no need to worry about driving the car under high pressure and it is protected from rain and moisture. Know the tire pressure and tire temperature without wiring. The sensor is locked with a nut to prevent theft, so you can use the circuit with confidence
4. Automatic Vibration Detection: When the engine starts, the tire pressure monitoring system will detect vibration and start automatically. If the tire pressure monitor sensor does not detect vibration, the display will automatically enter sleep mode to save power. After the product is opened, there is no need to close the product when it is not in use, it'll automatically turn on when the car vibrating. After manually shutting down the product, you need to manually start it for use.
5. Small Tip: 1. When the tire pressure monitoring system detector is not working or the screen is off, please check whether the device has sufficient power and it can be charged directly by USB. 2. If you feel that the reading is not accurate, first confirm whether the external sensor has power,then replace the internal button battery of the sensor to test.

Features 1:
External sensor
Easy to install.
The battery life is about two years, and the battery can be replaced (installed in the valve core)
Anti-corrosion coating on the surface of the casing.
Patent hexagonal anti-theft nut.
Integrated molding structure with exclusive patented silicone sealing and external tire pressure ventilation to prevent air leakage.

Features 2:
Internal sensor
The battery life is about five years, and the battery can be replaced (replace the original valve core, balance after installation).
Automation gas road gas nozzle.
Battery quality.
The casing is made of chemical fiber nylon to prevent corrosion.
A connection between the nozzle and the adjustable angle sensor ensures that the angle is adjusted to be flush with the wheel rim.
Professional installation is recommended.

Function:
Real-time monitoring: the tire pressure and temperature status can be controlled regardless of whether the vehicle is running or at rest. The state of the tires is under control.
High pressure / low alarm pressure: When the tire pressure is higher or lower than the set value, the system will give an alarm.
Air leak alarm: The system will give an alarm if a foreign object enters the tire and generates a leak.
High temperature alarm: When the tire temperature exceeds 80 ° C, the system will give an alarm.
Ultra-low power consumption: Extremely optimized operation mode, the battery life of the system is up to 5 years.
Operating state of the tire pressure sensor module:
Because the tire pressure sensing module is battery powered, the problem of battery life becomes a problem that has to be considered, especially in software design. The low-power implementation algorithm must be carefully designed and can be divided into the following states:
Store status: The system is in an unused state and should go into deep sleep mode
Transport status: The detection module has been loaded and is not actually used during transport.
Status Staging: Activated charcoal and started working, but stopped at this time, the speed is 0.
Driving status: Through the acceleration sensor, the speed change is detected, the running state is entered and the tire pressure, tire temperature, speed etc. are detected.
Low voltage state: If the battery voltage is too low, continuing the work will cause the related functions to not work properly, and a warning will be issued.
Deletting condition: A tire leakage is detected by continuous inspection, and a warning is issued.

Specifications(about):
Sensor type: internal / external
Communication failure alarm sensor duration: ≤10min
Battery model: CR2450HR (capacity: 550 mAh)
RF Frequency: 433.92 ±. 1 MHz
In RF emission average operating current: ≤1μA
RF emission maximum operating current: ≤15mA
High frequency power transmission: 7 ~ 9dBm in 50Ω
High frequency modulation mode: FSK (9.6 Kbps)
Low frequency receiving frequency: 125 ± 5 KHz
Low frequency reception mode: ASK (3.9 Kbps)
Low-frequency signal reception sensitivity: 1 ~ 50mVp-p
Pressure measuring range: 0 ~ 4.5Bar
Pressure measurement resolution: 25 mBar
Temperature measurement resolution: 2 ° C
The accuracy of the pressure measurement: ± 75 mBar at -20 ° C ~ + 70 ° C, ± 150 mBar at -40 ° C ~ + 120 ° C
The accuracy of temperature measurement: ± 4 ° C at -20 ° C ~ + 70 ° C
Resistance to rotation: ≥1500g
Operating temperature range: -40 ° C ~ + 105 ° C
Storage temperature range: -40 ° C ~ + 125 ° C
Size: 100 * 65 * 25mm / 3.94 * 2.56 * 0.98in
Weight: 72g

Packing List:
1 x Car TPMS Host
4 x Sensors
1 x Manual

Notes:
1. There may be slight tolerance in size due to manual measurement, different measuring methods and tools.

2. The picture may not reflect the actual color of the item due to the different shooting light, angle and monitor display.