Feature 1Used to track engine running time for all types of engines, activated by the vibration of device 2It is wireless, vibration activated 3With LCD digital display (5 digit display), show engine hours of operation 4Automatic roll over, no power connection required (internal battery CR2032) 5Complete waterproof, easy to install. Features: Used to track engine running time for all types of engines, activated by the vibration of device. It is wireless, vibration activated. With LCD digital display (5 digit display), show engine hours of operation. Automatic roll over, no power connection required (internal battery CR2032). Complete waterproof, easy to install. Specifications: Material: Plastic Color: Black Timing Range: 0-99999.9hours Resolution: 0.1 hours Package Weight: 55g Fitment: for Motocross, Marine, Motorcycle, Snowmobil, ATV, Boat, Generators, Tractor, lawn mowe and any other vibration devices. Package Included: 1 x Digital Vibration Hour Meter Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }