Feature 1Monitor tire pressure and temperature in real time to enhance the driving safety. 2Visual and auditory warning of tyre pressure and temperature anomalies. 3Smart sleep mode saves energy to achieve low power consumption. 4 Also has tire leakage warning function, and the tire pressure and temperature data are clear to read. 5psi/bar pressure unit and C/ F temperature unit are optional.Features: 1. Monitor tire pressure and temperature in real time to enhance the driving safety. 2. Visual and auditory warning of tyre pressure and temperature anomalies. 3. Smart sleep mode saves energy to achieve low power consumption. 4. Also has tire leakage warning function, and the tire pressure and temperature data are clear to read. 5. psi/bar pressure unit and C/ F temperature unit are optional. Specification: Condition:100% Brand New Material: ABS Color: As Pictures Shown Type: Digital Model: C-240 Working Frequency: 433.9200MHz Working Voltage: 5V Working Current (Static Current): 30uA Working Current (Dynamic Current): 8mA Work Environment: -40 - + 85 Pressure Detection Range: 0~99 psi, 0~5 bar Charge Mode: Solar Power / USB Battery Lifespan: 3Y External Sensor Package list: 1 * Solar Power Digital Display Monitoring System Screen 4 * External Sensor 4 * Nut 1 * Wrench 1 * Manual 1 * Double-sided Adhesive Note: This product can monitor tire pressure and temperature in real time and give warning. However, it cannot prevent the occurrence of accidents, so we do not assume the responsibility for direct or indirect losses caused by the damage of this product.