Feature: 1. Accuracy and Precision: Boat tachometer gauge panels have high precision indicators to provide accurate and quick information on the rpm of your boat's engine. 2. Alarm Function: The tachometer instrument panel has an alarm function, which can remind the user of abnormal conditions of the engine in time to ensure the safety of the engine. 3. Fine Processes: Tacho gauge panels are made of metal and plastic materials and have been carefully designed and manufactured to be durable and stable, and to maintain good performance over a long period of use. 4. Enhanced Safety: By providing real time accurate information about the boat's engine speed, a tachometer can help ensure the engine is running at optimal levels, preventing engine damage or failure. 5. Easy Installation: Installing the tacho meter panel is as simple as preparing suitable holes in the meter panel and securing the meter with nuts and retaining clasp. Specification: Item Type: Boat Tachometer PanelMaterial: Metal + Plastic Speed: 8k (80*100rpm) Opening Size: Approx. 180 x 140 x 85mm / 7.1 x 5.5 x 3.3in Operating Voltage: 12v Working Current: ≤150ma Operating Temperature: -30 - +70℃ Storage Temperature: -40℃ ~ + 85℃ Alarm: No Water/No Oil or Overheating Buzzer Instrument: Tachometer Eng/Stop: Stop the Engine Ignition Key: Off: Stop; On: Power Supply; Start: Start Lamp: Controls the Instrument Backlight Temperature: The Operating Temperature Is Higher Than 96 ℃ Red Light Warning Pressure: Work When the Oil Pressure Is Below 0.8bar Preheat: Preheat the Engine and Maintain a Stable (Starting) Temperature When Not Running Application: Suitable for Yachts, Ships, Speedboats, Etc. Package List: 1 x Boat Tachometer Panel2 x Keys 1 x User Manual