1The panel adopts high-definition transparent glass which can provide clear reading. 2Designed with anti-slip screws, steady and long service life. 3Suitable for excavator timing, engineering vehicle timing, timing and generator timing 4The mounting hole diameter is 51.5mm, easy to install. 5There is a indicator light, convenient to use.Features: 1. The panel adopts high-definition transparent glasswhich can provide clear reading. 2. Designed with anti-slip screws, steady and long service life. 3. Suitable for excavator timing, engineering vehicle timing, timing and generator timing 4. The mounting hole diameter is 51.5mm, easy to install. 5.There is a indicatorlight, convenient to use. Specification: Condition: 100% Brand new Working Voltage: AC/DC12~36V Measuring Range: 0-99999.9 Rated Power: 0.3W Working Temperature: -20-50, relative humidity 80% Working State: Indicator Light Flashing Mounting Opening Diameter: Approx. 51.5mm / 2in Package List: 1 x Hour Meter2 x Terminals 1 x Terminal Base