Features Better Timing: Comes with a maximum timing range of 0‑999.99h, the time gauge also has reset function for working hour counting. Smart Control: Allows for wide application on varied industrial systems for better motor control and easier equipment operation. Clear Display: Works stably under AC 220V, the timer enables digital display to clearly show the data and simplify your working. Accurate Work: Ensuring high accuracy, the battery powered hourmeter will largely improve your efficiency with more reliability. Easy to Install: Standard design with light weight and compact size allows for easy installation by hole drilling or buckling. Specification: Item Type: Hour Meter Product Model: HM-D48 Product Working Voltage: 220V 50Hz Product Maximum Accumulation Time: 0-999.99h Product Operating Temperature: -10~50℃ Product Accuracy: ±0.01 Product 0 Reset: yes Product Battery: 2 x button battery CR2016, 3V 75mAh for single battery (delivered with built in battery) Package List: 1 x Hour Meter Package List 1 x Hour Meter