CarVehicle Sensors Tire Pressure Alarm Monitor System Temperature Warning 4 External Internal s Fuel Display Attached wireless Solar CarVehicle Sensors Tire Pressure Alarm Monitor System Temperature Warning Fuel Save Display Attached 4 External s wireless Solar Main features of the product: 1. Built-in 4 probes, the color screen is more stable and taller, suitable for e-commerce profit models! 2. Adopt German Infineon solution, high precision, low power consumption, stable performance, long-term supply to domestic and foreign customers 3. Imported large-capacity battery, long standby time, external can reach 1 to 3 years, built-in 2 to 6 years (depending on the actual use of the vehicle) 4. Classic shape, compact and mini, easy to carry and transport 5. Charger, solar dual-circuit power supply 6. High-quality after-sales service, one year replacement for new machines if there are quality problems 7. Product packaging instructions are available in Chinese and English (please contact customer service) Vehicle Sensors Tire Pressure Monitoring System Solar Power Digital Wireless LCD Displaywith 4 Internal s Specification: Operating frequency: 433.92Mhz Working temperature: -40 -120 Humidity: 0% to 100% Battery life:3-5years Internal senso 5 years/ 50,000 km Working pressure: 0 99Psi Alarm pressure: 46.5Psi or 26.0Psi Pressure accuracy: 1.5Psi Working voltage: 2.1-3.6V Waterproof: Ip67 Monitor Specification: Solar power charging LCD displaying Adhere to windscreen for installation Operating frequency: 433.92Mhz 50KHz Operating voltage: 3.7-5 V Working temperature: -20 -75