Precautions:1. The timer is not waterproof, please keep away from the water and the damp position.2. The working voltage must be compatible with the voltage specified by the timer.3. It is strictly forbidden to touch the timer with wet hands.4. Please turn off the power before maintaining the timer.5. When the product is not in normal use, it should be repaired by a professional.6. If the product accidentally falls into the water, please turn off the power immediately and dry it in a cool place7. Do not expose this product to exposure to the sun8. This product is not a toy, please stay away from children9. Welcome to contact us by email if you meet any question on this item, we will try our best to help you and provide solutions.