Wema Tachometer 4000RPM

The Wema 4,000 RPM tachometer (Part 110912) is an analogue engine monitoring instrument designed for integration into marine vessel dashboards. This gauge provides a continuous visual indication of engine rotational speed, serving as a primary interface for monitoring engine performance and tracking operational hours. The unit features a black dial face with white numerals and a white needle, offering high contrast for readability. Key Features Anti-Fogging Lens: Equipped with a dual-layer, anti-fogging glass lens to maintain visibility in high-humidity and temperature-variable environments. Integrated Hour Meter: Features a built-in LCD screen to track cumulative engine running hours for maintenance scheduling. Integrated Backlighting: Internal illumination ensures the scale remains clearly visible during night-time operations. Calibration Control: Includes an adjustment button on the rear housing to calibrate the unit to various engine pulse outputs. Signal Flexibility: Compatible with multiple input sources, including alternator 'W' terminals and inductive sensors. Technical Specifications Part Number: 110912 Display Range: 0–4,000 RPM Operating Voltage: 12V / 24V DC Mounting Hole Diameter: 85mm (3-3/8") Ingress Protection Rating: IP67 (front-facing), ensuring protection against dust ingress Face Colour: Black Excellent anti-fogging performance Plastic black bezel with curved glass Easy-fit connector block and loom included Red or Yellow Switchable LED Backlight Pickup Options: 1. Ignition coil (W) 2. AC tap on alternator 3. Inductive pick-up off flywheel (Tacho speed sensor) 4. Pulse generator on crank shaft 5. Wire from Engine Control Module (ECM)