zeepin c200 tire pressure monitoring system solar tpms universal real-time tester lcd screen with 4 external sensors

specifications: external sensor: - battery: built-in cr1632 button cell - working voltage: 2.0 - 3.6v - working environment: -40 - 125 deg.c - monitoring pressure: 0 - 5.0 bar - waterproof grade: ip67 - transmission frequency: 433.92mhz