Wireless Vibration Hour Meter Waterproof LCD Digital Stopwatch for All Gasoline Engine Models Features: 1. The timer is completely waterproof2. Applicable to all gasoline engines3. Vibration sensitive design, just install the timer on the device, when the device works, the timer starts working4. The large time range is: 9999.9 hours5. LCD6 display. Low voltage design, built-in battery power mode, safe and reliable7. Blister paper card packaging, beautiful appearance and high quality8. The product is used in gasoline engines Technical specifications: Name: Gasoline engine timer (wireless version) Color: black Material: ABS Net weight: about 50g Product size: 53.5mm * 36.2mm * 14.6mm Package size: 190mm * 113mm * 25mm Product accessories: 2 screws Waterproof: waterproof full body design, IP68 waterproof rating Maximum time range: 9999.9 hours Battery capacity: 270mAh Applicable models: universal use for all gasoline engine models. Package: 1 x hour meter 2 x screws Installation and operation method: Induction design, use screws or glue to fix it on the surface , then it will sense the signal and start the time. Note: 1. Strong vibration or violent use may cause the watch to operate abnormally.2. Please do not disassemble this product.3. Please avoid using it in or underwater. Note: Light shooting and different displays may cause the color of the item in the photo a little different from the real thing. The measurement error is +/- 1-3cm.