Solar TPMS Tire Pressure Monitoring System With LED Ambient Light, External 4-Wheel, External 6-Wheel, Built-in 4-Wheel, Built-in 6-Wheel

Receiver:
1. Transmission frequency: 433.92MHz
2. Battery capacity: 300mAh
3. Operating voltage: DC 5V
4. Pressure units: bar / psi
5. Temperature units: Celsius / Fahrenheit

Sensor:
1. Transmission frequency: 433.92MHz
2. Pressure range: 0-6 bar / 0-87 psi
3. Low-pressure alarm threshold (default): 1.8 bar
4. High-pressure alarm threshold (default): 3.0 bar
5. Measurement accuracy: +/-0.1 bar
6. Waterproof rating: IP67
7. Battery: Built-in CR1632 coin cell (user-replaceable)
8. Battery life: Approx. 1-2 years

Features:
1. Features a color ambient light at the base: glows blue during normal operation; flashes red with an audible buzzer alarm during abnormalities.
2. Large digital display monitors real-time tire pressure, temperature, and wireless transmission status for 4 or 6 tires simultaneously.
3. Supports both solar charging (via top panel) and wired charging (via Type-C port) to suit various weather conditions.
4. Allows switching between pressure units (Bar/Psi) and temperature units (Celsius / Fahrenheit); includes external sensor battery level monitoring.
5. External sensors feature brass connectors with copper cores and an IP67 dustproof/waterproof rating.

Package Contents:
1. Receiver x 1
2. Sensors x 4 / 6
3. User manual x 1
4. Locking nuts x 4 / 6
5. Wrench x 1
6. Charging cable x 1