u912 433.92mhz wireless tpms tire pressure monitoring system 4 external sensors for honda

features: - 4 external sensors, built-in cr1632 3.7v cell, monitor frequency: 433.92mhz. - real-time monitoring per 3s, can monitor pressure and temperature at any time. - reduce driving risks and fuel consumption, prolong lifetime of tires. - electronic pressure detection, high accuracy.