Features 1. Suitable for various vehicle modifications, equipped with a stepper motor pointer. 2. Provides precise motor RPM display with LCD time display, offering high precision, repeatability, versatility, reliability, and stability. 3. Tachometer features a stepper motor pointer for accurate RPM reading and clear LCD time display. 4. Practical installation with multiple connection terminals for added convenience. 5. Excellent anti-fog performance allows easy data reading in adverse weather conditions. 6. Simple drive and control design for user convenience. 7. IP67 protection rating ensures the entire unit is fully waterproof. Specification Condition: Item Type: Tachometer Optional Color: Silver Frame Black Dial, Silver Frame White Dial Tachometer Sensor Model: M18 x 1.5 Tachometer Sensor: M16 x 1.5 Materials: Stainless steel + nickel-plated plastic Operating Current: 60mA Operating Voltage: 12V / 24V Range: 0-3KRPM Input Signal: Signal from tachometer sensor, engine, alternator, ignition coil, crankshaft sensor, etc. Adjustable Speed Ratio: 1-300 Protection Level: IP67 Display Mode: Red backlight, LCD screen, stepper motor, high precision Mounting Hole: Approx. 85mm / 3.3in Instructions: Before installation, drill a hole in the panel with a diameter of 85-87mm (3.3-3.4in), ensuring a clearance space of 70mm (2.8in) behind the panel. Insert the meter into the hole. Secure the clamp into the hole and rotate the back cover to tighten. Package List 1 x Tachometer 1 x Connection Cable 1 x Instruction Manual