Specification: Color: like the pictrue show Remote distance: Within 10m Voltage: 12V /24V LCD Connector pin: 3 Pins Remote Control: 4 Button Fitment: For 3KW 5KW 8KW Air Diesel Parking Heater Remote Control To Code instruction: 1. Pressing the up button first and then press the confirmation button to hold more than 3 seconds while in the off setting state 2. Entering the remote control to the code interface until displaying hfa- 3. Pressing the remote control to launch the remote code 4. The machine is on after the remote code disappear, or it won& 39;t turn on if the code failed 5. The code will automatically exit when it is over time Motherboard working voltage setting: The working voltage of the motherboard can be selected only when it is turned off. Press the up and down keys to select and switch the working voltage of 12V system to display U-12, and 24V system to adjust to display U-24 to complete the selection. (Before starting the machine, pay attention to check whether the oil pump, motor and ignition plug of the machine are matched to avoid damage) Important Note: 1. There is a transparent plastic protective film on the screen that can be removed before using. 2. If your original motherboard and controller look the same as ours, then you can buy a mother or a controller to replace your broken one. If your original motherboard and controller are different from ours, you need to buy motherboard and controller together to replace your broken ones. Or it will not fit for your heater. Package Included: 1 x LCD Switch & Remote 1x Mother Board