Funnytoday365 4 Digital Led Blue Tachometer Rpm Speed Meter+Hall Proximity Switch Sensor Npn;

Working power supply£ºDC8-24v 40 mA
Measure range : 5-9999RPM.
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¡ãC.

Package included
1x proximity switch
1x Tachometer