Feature:1. LCD Screen: The tach hour meter is equipped with a LED liquid crystal display for clear and readable information.2. Wide Application: Extensively universal for pickup trucks, truck trailers, SUVs and boats, etc.3. Applicable Engine: The tachometer timer is carefully designed for all gasoline engines with spark plugs.4. Inductive Design: Due to inductive design, the cable can be operated by binding the cable to the spark plug.5. Low Voltage Design: Thanks to low voltage design, builtin battery power supply, it is more safer and reliable in use.Specification:Item Type: Tach Hour MeterMaterial: ABS + MetalBuilt-in Battery: 1PCS CR2450 Button Battery 150mahTiming FunctionA. Total time: record the total working time of the vehicle, the range is 0-99999H.B. Maintenance reminder timing: According to engine maintenance requirements, set the engine maintenance reminder time, the range is: 0-9999.9H. Reminder mode SERVICE flashing reminder.C. Reset function: When replacing the engine, the data can be reset by pressing the button.Speed FunctionA. Real-time detection of engine speed, speed range 0-30000RPMB. Engine stroke selection: suitable for 2-stroke 4-stroke engines (1P1R 1P2R 2P1R)Individual Timekeeping Mode: Can be set to separate timing mode by pressing the button, without measuring the speed.Sleep Function: 120S without operation, the product will enter sleep mode, reduce battery power consumption and increase service lifeFeatures:1. Built-in button battery CR2450 for power supply, low power consumption design, service life up to 3-5 years2. Automatic data storage, high-quality memory, data is not easy to lose.3. Comes with induction wire, easy to connect, just wind the other end of the induction wire around the spark plug 5 times..Package List:1 x Tach Hour Meter1 x Manual 2 x Cable Tie