Sell Qiaotaoshangw Solar Wireless TPMS Car Tire Tyre Pressure Monitoring System w/4 Internal Sensor best price

Description: Solar LCD Car TPMS SP370 Wireless Tire Pressure Monitoring System with 4 Sensors Description: - Tire pressure alarm, wireless transmission; four wheel simultaneous monitoring on the color display - Prevent problems before they occur: prevent puncture and air leak to balance air pressure, save fuel, and reduce wear - With 4 internal sensors Tire pressure sensor module working state Because the tire pressure detection module is powered by battery, the battery life problem becomes a problem that needs to be considered, especially in software design. The low-power algorithm implementation should be carefully designed and can be roughly divided into the following states: - Storage status: The system is in an unused state and it should enter deep sleep mode - Transportation status: The detection module has been loaded and is not actually used during transportation. - Parking status: Activated 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 status: If the battery voltage is too low, continuing to work will cause the related functions not to work properly, and a warning will be issued. - Leakage condition: A tire leak is detected by continuous inspection, and a warning is issued. Feature: - High-efficiency solar panel, superior long duration capability - Large-capacity built-in metal lithium battery - Accurate monitoring of tire pressure stability values all the way - High precision LCD display - Large volume alarm sound alert - A variety of tire pressure units are available - Long receiving distance with stable signal - Support tire position interchange Specification: Sensor communication fault alarm duration: ≤10min Battery model: CR2450HR (capacity: 550mAh) RF frequency: 433.92±0.1MHz No RF emission average operating current: ≤1μA RF emission maximum operating current: ≤15mA High frequency transmission power: 7~9dBm at 50Ω High frequency modulation mode: FSK (9.6Kbps) Low frequency receiving frequency: 125±5 KHz Low frequency receiving mode: ASK (3.9Kbps) Low frequency signal receiving sensitivity: 1~50mVp-p Pressure measurement range: 0~4.5Bar Pressure measurement resolution: 25mBar Temperature measurement resolution: 2 ° C Pressure measurement accuracy: ±75 mBar at -20°C~+70°C, ±150 mBar at -40°C~+120°C Temperature measurement accuracy: ±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