Track the service life of all non-engine applications with this vibration hour meter from Hardline Products, which helps you keep up with a successful preventative maintenance program for bearings, chassis lubrication, and more on powersports trailers and other equipment without engines. Vibration automatically activates recording. Easy to install, just peel and stick -- no wiring necessary. The meter has a 10-year battery sealed inside, and it records up to 9,999.9 hours. The unit measures 2-1/8 x 1-1/2 x 5/8 inches. Hardline Products is an industry leader in after-market power sports accessories, offering matched registration letter and number kits, decal application and removal fluid, and more for on- and off-road motorcycles, boating, personal watercraft, all terrain vehicles (ATVs), snowmobiles, and karting. Made in the USA.