DC9-24V Motorcycle-Engine Tach-Hour Speed Meter Guage LCD-Display Waterproof Car 4-Digit Counters Tachometer 30-80000RPM

This product is a multifunctional speed measuring/counting table with speed measuring function, counting function and upper limit alarm output function. It is generally applicable to all kinds of mechanical such as harvesters, fan, etc, where the speed of devices needs-to be measured. This product is compatible-for Hall switch, metal proximity switch, infrared-proximity switch and other detection switch signals. This product can output an NPN-alarm signal, and the user can connect an indicator lamp-and a sound-generator for warning. Users can customize the alarm field-value. DC9-24V Motorcycle-Engine Tach-Hour Speed Meter Guage LCD-Display Waterproof Car 4-Digit Counters Tachometer 30-80000RPM Features: This product is a multifunctional speed measuring/counting table with speed measuring function, counting function and upper limit alarm output function. It is generally applicable to all kinds of mechanical such as harvesters, fan, etc, where the speed of devices needs-to be measured. T