High quality, compatible with 12V/24V systems, suitable for 3KW, 5KW, and 8KW applications. Quick cabin air preheating after hot start. Low power consumption; ideal heating solution for long-term parking (8 watts, equivalent to the energy usage of a standard indicator light). Low fuel consumption at 0.1 liters per hour. Adjustable cabin temperature settings. Wide control range with significantly lower power draw compared to similar market products. Stepless adjustment of cabin temperature. Noise reduction achieved through controlled blower speed management. Optional internal or external installation configuration. Real-time functional monitoring capability. Color: As shown in photo. Material: Plastic + Electronic Components. Package Includes: 1 x Air Diesel Heater Control Board. Note: Other items not included. Light reflection and display differences may cause slight color variations between the image and the actual item. Measurement tolerance: +/- 1-3 cm.