4 Digital LED Tachometer RPM Speed Meter Tester with Hall Proximity Switch Sensor NPN Set Blue 0.56
$13.99
Description
Measure varied motor RPM Measure range: 10-9999 RPM.Input signal voltage: low level: -30V -0.6 V, high level: 4-30V.The external appearance adopts standard size, convenient to install and easy to use.Input pulse signal: NPN/PNP open collector ,contact switch, contactless switch, level pulse.Come with hall sensor and magnet, good stability, high precision and strong anti-interference ability
