The TiMOTION desk hand control series is not a sealed unit; it contains internal electronics. If liquids or moisture enter any openings, it may result in damage to the PCB, rendering the hand control unusable. Therefore, it is recommended to clean your desk hand control using a soft damp cloth and a neutral disinfectant cleaner with a pH value between 6 and 8 if necessary.   Please avoid the following situations: Allowing moisture to penetrate any openings, as this may cause damage to the PCB inside the desk hand control. Spraying the cleaning agent or disinfectant directly onto the desk panel, as moisture may infiltrate openings, potentially damaging the PCB inside the desk hand control.