• Easy to install : Simply screw it onto the tyre valve. Twist off your original valve cap, and replace with this valve cap LED light. Installs on standard tyre air valve of cars, motorcycles or bicycles
• Light Sensor to ensure that the light does not switch on during the daytime.
• No battery connection required – No need to connect to the vehicle’s battery.It lights up itself using high-quality metal gold-plated, inner zone button batteries. Requires 3 AG10 button cells per skull valve.

• Supports Real Time Clock
• Integrated GPS/CNSS and supports A-GPS
• Quad-band 850/900/1800/1900MHz
• Supports charging control for Li-Ion battery
• Supports 3.0V to 5.0V logic level interface as well as RS232 Interface

• RAMPS 1.4 LCD 12864 intelligent controller.
• With an SD card base on back.
• Large screen display 128×64 LCD (3.2″)
• SD card slot at the back, able to directly select a file and print
• The product comes encoder parameter adjustment can be achieved, and the file selection print
• Plug & play on the RAMPS, but need to modify the firmware to support.
• LCD 12864 Smart Controller fully supported by Marlin Firmware.

• Reset button
• Two independent buttons
• Two LEDs
• ADC potentiometer
• 5V or 3.3V working voltage selection