Feature 1Show both engine RPM and hours of operation 2Work on 2 or 4 stroke gas powered engine. Induction type design, only need to connect the cable on the spark plug can operate 3LCD screen display showing data clearly 4Programmable maintenance interval setting 5Battery can be replacedFeatures: Show both engine RPM and hours of operation. Work on 2 or 4 stroke gas powered engine. Induction type design, only need to connect the cable on the spark plug can operate. LCD screen display showing data clearly. Programmable maintenance interval setting. Battery can be replaced. Specifications: Material: Plastic Color: Black Display: LCD Digital Display Hours Range: 9999,9Hours RPM Range: 9999RPM Battery Life: 3 Years Size: 74 x 47mm/2.9" x 1.8" Package Weight: approx. 67g Package Included: 1 x Tach/Hour Meter with Wire 2 x Zip Cable Tie Note: It is easy to install, but professional installation is highly recommended. .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; }