SPY 2 Wheel Motorcycle TPMS Waterproof Tire Pressure Monitoring System with External Sensor -- Features: 1. Special waterproof design for motorcycle.2. DIY installation, steering wheel and dashboard installation methods.3. Built-in rechargeable battery in the display, long-life battery.4. Waterproof and dustproof display.5. Autobicycle TPMS warns about abnormal tire pressure and temperature, slow air leak or fast air leak.6. Pressure unit interchangeable between barium and Psi.7. Cycle display the pressure data in the 50s, then cycle to the temperature data within 8s. Specifications: Model number: TPMS-M1 Tire sensor: external sensor Application: 2 wheel motorcycle Voltage: 5V 0.5V Operating temperature: -40 degrees to 80 degrees C Color sensor: silver/black Frequency: 433.92MHz Sensor pressure range: 0-3.5Bar/50PsiTemperature sensitivity: 2 degrees Pressure sensitivity: 0.1 bar/1.5 psiWarranty: 1 year Real-time monitor pressure and temperature of two tires at the same time, alarm triggering when pressure and temperature in abnormal state FAQQ: How long does it work? A: For display, it is rechargable, works 40 days after fully charged. Q: How long is the sensor life? A: Works about 2 years, and the battery can be replaceable. Q: If the sensor is lost, can I buy a fitted new sensor? A: Yes, the new sensor can work with it. Brand History