Features: Enhances your vehicle's heating system with our parking heater circuit controller, for 12v/24v diesels air heaters, ensuring efficient performances and fuel savings. Crafted from heat resistant plastic and metal component, this circuit board features advanced circuitry for stable operation even in extreme conditions. For truck drivers, freight companies, and automotive technicians seeking reliabled heater component to improve comfort and service quality. Perfect for cold weather driving, camping, and outdoor activities, this controller ensures a warm interior environment, making it essential for motorhomes and long hauls trucks. With easy installation and built in safety mechanisms like overload and short circuit protection, this circuit board guarantees longevity and reduces the risk of malfunctions. Specifications: Component:Plastic Size:Approx.9.5x6.3cm/3.74x2.48inch Voltage: 12V/24V Scope of application: suitable for 12V/24V,3KW/5KW diesels air heaters. Package Includes: 1pcs Parking Heater Circuit Controller note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.