Description This item is a portable and practical round-shaped quartz hour meter, specially designed for standard industrial timing and providing data for maintenance duration reference in precision equipment. It is widely used for tracking operating time on machinery such as engineering vehicles, various types of equipment, and other devices requiring hour recording. Features - Color: Black - Material: Durable plastic and metal - Round shape with 6-digit display quartz hour meter - Compact size, operates within a wide voltage range - Fits a 2-inch round hole - Waterproof design with steady performance, ideal for tracking operational hours on machinery including engineering vehicles and other equipment Specifications - Accuracy: 0.01 - Voltage: AC/DC 10V80V - Power consumption: 0.3W - Working temperature: -10C to +50C - Time range: 0.1 to 99999.9 hours Packing list: 1 x 10V80V DC/AC 2-inch Round Gauge Hour Meter for Marine Boat Engine (Black)