Size: Can be operated within a wide voltage range with positive and negative poles for easy installation. Timing accuracy with error under 1 second. 6-digit display, from 1/10 hour to 99999.9 hours. Applications: Dynamo, air conditioning, air compression equipment, etc. This rectangular hour meter can be used for devices where time is used to determine oil change intervals, service requirements, or where there is a need to record hours of operation. Voltage: AC100-250V. Power Consumption: 1W. Dielectric Strength: 1500V / min. Working Temperature: -40C to +50C. Color: Black. Material: Plastic. Package Included: 1x Hour Meter. Note: Lighting and different displays may cause the color of the item to appear slightly different from the real thing. The measurement allowed error is +/- 1-3cm.