Compact size, can be operated within a wide voltage rangeWith positive and negative poles for easy installationReliable timing accuracy with error under 16 digit display, from 1/10 hour to 999999Applications: Dynamo, conditioning, compression equipment, etc This rectangular hour meter can be used for device where time is used to determine oil change intervals, service requirements or where there is a need to record hours operatedSpecifications:Voltage: AC100-250V Consume: 1WDielectric Strength: 1500V / minWorking Temperature: -40 deg C to +50 deg CColour:BlackMaterial:PlasticsPackage Contents:1 * Hour MeterOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.