Features: Used to track the service life of engine. Low power consumption, long for time to use. Completely sealed-against dust and moisture. Reliable performance, counter never loses. High accuracy, records and displays to 99,999.9 hours. Package Includes: 1x Hour Meter Specifications: Material:ABS Diameter:Approx.6cm/2.36"" Accuracy: 0.01 return zero: no Voltage: AC/for DC 6v - 80v Power: 0.3 for w Working temperature: -10~ 50 Relative humidity: all-sealed Shockproof grade: 10-70Hz 1-8g Waterproof grade: IP65 note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don''''t hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it