Motorcycle TPMS Tire Pressure Monitoring System Motor Tyre LCD Display Alarm System with 2 External Sensors USB Solar Charging Feature: IP65 waterproof, allowing you to drive in the rain. Large-capacity built-in metal lithium battery. Accurately monitor tire pressure all the way. High precision LCD screen with time display. High volume alarm sound warning. Long receiving distance, stable signal. Specification: Receiver Working temperature: -20~+80 Storage temperature: -30~+85 Power-on voltage: DC 5V Frequency: 433.92MHz20.00MHz Sensor Working temperature: -20~+80 Storage temperature: -30~+85 Pressure range: 0~6.6bar Pressure precision: +/-0.1bar Temperature accurancy: +/-3 Transmitting power: