Description: 【Visual Monitor】: The Mechanical Hour Meter is equipped with built in indicator lights that clearly display the device's operating , allowing users to easily monitor whether the device is running and accurately record cumulative working time. 【Easy Installation】: For user convenience, the Mechanical Timer comes with a sturdy power cord and secure screw terminals. Installation is quick and easy, simply connect the positive and negative wires to the generator or industrial equipment; even beginners can easily install it. 【Wide Voltage Compatibility】: The Hourmeter supports 220-240V 50Hz AC input, suitable for various industrial environments, ensuring stable performance in different applications. 【Material】: The Hour Gauge is made of ABS, making it robust and sturdy, maintaining accurate timing even in harsh environments such as those with heavy machinery like generators, compressors, and chainsaws. 【Wide Counting Range】: The Industrial Timer offers a wide counting range from 0 to 99,999.99 hours, allowing for long term monitor without frequent resets, making it ideal for continuous operation tracking in demanding industrial scenarios. Specification: Voltage: AC 220-240V 50HZ Installation method: DIN rail mounting Size Chart: 4.9cmx4.8cmx5.5cm/1.93inchx1.89inchx2.17inch Package Includes: 1 set Mechanical Hour Meter Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.