The item is a professional and practical rectangular electromechanical hour meter, which can be used for device where used to determine oil change , service requirements or where there is a need to record operated. It can be operated a wide range, and be widely used for Dynamo, air conditioning, air compression equipment, etc. Features - Model: SYS-1. - Color: mainly black. - Material: durable hard plastic and metal. - Dimension (L*W*T): about 2.3*2.3*1.2 inch /6*6*3cm. - and 100- Electromechanical Hour Meter Counter. - Compact size, can be operated a wide range. - With positive and negative poles for easy installation. - Reliable timing accuracy with error under 1‰. - 6 digit display, from 1/10 hour to 99999.9. - This meter is not waterproof, and can not be submerged. - Applications: Dynamo, air conditioning, air compression equipment, etc. Specifications - : 100- . - Power Consume: 1W. - Dielectric Strength: 1500V /min. - Working Temperature: -40°C to +50°C. Package list: 1 * SYS-1 100- 6 Digit Display Electromechanical Electronic Timer Hour Meter Counter (Black)