https://www.thegreenreaper.co.uk/dr-hour-rpm-maintenance-meter-for-all-dr-models2540DR Hour/RPM/Maintenance Meter for all DR Modelshttps://www.thegreenreaper.co.uk/media/catalog/product/d/r/dr184271.jpg48.00GBPInStock/Grass Cutting/Lawn Mowers/Lawn Mower Accessories/Miscellaneous Lawn Mower Accessories/More/Parts & Consumables/Miscellaneous Spares/Brand Categorieshello Stay on top of your DR's maintenance schedule - with the optional Hour/RPM/Maintenance Meter you can monitor your DR's engine hours, RPM, and oil and filter change schedules. Plugs into a socket on the DR's control panel for easy visibility.48.00DRadd-to-cart