[DETAIL] Featurues: easy to install: connect to spark plug wire No battery needed - built in button battery Suitable Engine: Works on any Gas Engine Range: Record and display at 9,999.9 hours Resolution: 0.1 hour Specifications: Color: Black/Blue/Red Optional Item Size: 54x31x14mm Package size: 176x101x15mm Net weight: 48/35g Packing content: 1 hour meter 1x wire 2x screws [ATTRIBUTES] - Hign-concerned Chemical: None - Special Features: Counter Hour Meter - Item Diameter: 3.5cm - Hign-concerned Chemical: None - Special Features: Counter Hour Meter - Item Diameter: 3.5cm - Item Weight: 48g - Item Height: 1.4cm - Item Width: 3.5cm - Item Length: 5.4cm - External Testing Certification: ce - Brand Name: kebidumei - Origin: Mainland China - Material: ABS