Internal Tire Pressure Monitoring System tpms SPY. Main features:

• Powered directly via a USB charging port for battery charging and maintenance through the solar panel located at the top.
• Digital display showing the car tires' pressure and temperature simultaneously, simple and intuitive.
• Switching pressure units (bar / psi) and temperature units (Deg.C / Deg.F).
• Includes 4 internal sensors for tires with high sensitivity and good accuracy.

Specifications:

• TPMS Operating Voltage: DC 5V
• Operating Temperature: -40 - 85 Deg.C
• Pressure Unit: psi / bar
• Temperature Unit: Deg.C / Deg.F
• Sensor Specifications:
• Internal sensor
• Pressure measurement range: 0 - 3.5 bar
• Temperature measurement range: 0 - 70 Deg.C
• Accuracy: + / - 3 Deg.C
• Operating Temperature: -40 - 125 Deg.C
• Battery: internal to the sensor {CR2025 3V 330mAh (built-in)} - Battery lifespan: 3 - 5 years

The product installation requires a technical professional; please consult professionals for proper installation.