1. High quality, suitable for 12V/24V, 3kW/5kW/8kW 2. After a warm start, the air in the interior can be preheated very quickly. 3. Low power consumption. Ideal for long-term parking (8 watts of power corresponds to the energy consumption of a light bulb). 4. Lower fuel consumption (0.1 liters of oil per hour). 5. The temperature in the interior is adjustable. 6. Wide control range, very low power consumption compared to similar products on the market. 7. The interior temperature is continuously adjustable. 8. Effective noise reduction by controlling the fan speed. 9. Can be installed internally or externally. 10. Real-time function monitoring. Color: Photo color. Material: Plastic + electronics. Package includes: 1 x air heater control board. Only the above package content, other products are not included. Note: Light reflections and different displays may cause the color of the item in the picture to be slightly different from the actual product. The permissible measurement error is +/- 1–3 cm.