4 Digital LED Tachometer RPM Speed Meter + Proximity Switch Sensor NPN

Specifications:

Working power supply : DC8-24v 40 mA
Measure range: 5-9999 RPM
Display: Blue LED 67*32mm
Sign: Pusle signal, Hall NPN 3 wires normally open
Hall proximity model: NJK-5002C
Appearance: M12mm cylinder
Detection range: 10mm
Detected objects: Magnet
Response frequency: 100HZ
Operating temperature: 0 to 50?￣C

Package included:

1 x Proximity switch
1 x Tachometer