1. Liquid crystal display for easy reading 2. Features control button functions including manual refueling mode, timed start or stop, and time setting 3. Parking heater controller is user-friendly with timed start/stop support; remote control pairing is quick and simple 4. Parking warm air knob controller with manual refueling mode allows fast setup via the knob; product is thoroughly tested before shipment 5. Wide application: 12V/24V power supply voltage compatible with cars, trucks, and other vehicles Product instructions: 1. Remote control pairing 2. Refuel in manual mode 3. Start or stop using timer 4. Set the time 5. Remote control code entry 6. In off setting state, press the first button and hold the Confirm button for over 3 seconds 7. Enter remote control startup code interface displaying HFA, then input the remote control code 8. Code exit from code interface; if code fails, device returns to shipped state; code timeout results in automatic exit Tips: Product may vary slightly between batches; minor differences in color or design may occur but do not affect functionality Color: As shown in photo Material: Plastic Package contents: 1 x LCD remote control (batteries not included) 1 x monitor switch Note: Light reflection and screen display differences may cause slight color variation between image and actual item Measurement error allowance: +/- 1-3 cm