Features 1、Suitable for all kinds of vehicle modifications, stepper motor pointer. 2、Precise motor RPM display and with LCD display time, with high precision instructions, repeatability and versatility, reliability and stability. 3、Tachometer with stepper motor pointer, precise display of motor RPM and with clear LCD display time display. 4、Practical installation using a multiple connection terminal, more convenient and practical. 5、Excellent anti-fog function, convenient for you to read the data even in bad weather. 6、The drive and control are relatively simple, offering you much convenience. 7、The degree of protection is IP67, the whole body is completely waterproof. Specifications: Condition: 100% Brand New 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 Tachometer sensor Materials: Stainless steel + nickel plated plastic Operating Current: ≤60MA Operating Voltage: 12V / 24 Range: 0-3KRPM Input Signal: Additional signal from tachometer sensor, engine, alternator, ignition coil, crankshaft sensor, etc. Adjustable Speed Ratio: 1-300 Protection Level: IP67, the whole body is completely waterproof Red Background Application Mode: LCD screen, stepper motor, high precision Mounting Hole: Approx.85mm/3.3in Instructions: Before installation, firstly open a hole (diameter: 85-87mm/3.3-3.4in) of the panel, make sure there is a gap with (70mm / 2.8in panel backyard) as well. Put the meter in the hole. Mount the caliper in the hole, rotate the back cover after adjusting it. Package List 1 x Tachometer 1 x Connection Cable 1 x Instruction Manual