Display Refresh Rate: >3 times per second, Over Range Display: If the speed is too low, shows LLLL; the speed is too high, shows HHHH. 4 Digital LED Tachometer for Lathe & Conveyor Belt Hall Sensor 8-24V Inductive design : You just need to wrap the wire around the spark plugs. It can also be used as an external sensor to measure temperature, pressure, displacement, and other physical quantities. 4-Digit LED Display Tachometer Gauge NPN DC8-24V 1... – Grandado WIDE APPLICATION: This tachometer is used to measure the speed of different motors, widely used in lathe, CNC, lawn mower, spring, etc. STABLE CONNECTION: LCD tach hour meter with wire and magnet, stable connection, less electromagnetic interference, greatly improving RPM measurement efficiency. DC 8V-24V Tachometer 4 Digital LED Tach RPM Speed Meter With Hall Proximity Switch Sensor NPN 10-9999RPM Red/Green/Blue ANTI INTERFERENCE: Digital tachometer equipped with anti interference Hall sensor, DC6-36V voltage, measuring distance of 10mm, stable and reliable. Panel Opening Size: Approx., 68 x 33mm / 2., 7 x 1., 3in. Epoxy encapsulated casing resists water, fits different environments.
