Specification
Power requirement: DC 8-15V
Measure range : 5-9999RPM.
Clear zero: Automatic.
Clear zero time: about 10s. The greater RPM value, the longer clear zero time.
Refresh frequency: 0.2-0.5S@120-1200RPM;0.25-0.06S@2400-9999RPM.
Measure accuracy: RPM5000,±3.
Display: Green 0.56 inch LED
Sign: Pusle signal,Hall NPN 3 wires normally closed.
Hall proximity model: NJK-5002D
Appearance: M12mm cylinder.
Detection range: 2-3mm
Proximity output current: 200mA
Detected objects: magnet
Response frequency: 100HZ
Tachometer dimension:72x36x20mm,panel cutout Dimension:68x33mm.
Sensor dimention: M12x37mm.
Sensor wiring: brown--Power+; blue--Power-; black--signal.
Operating temperature: 0 to 50°C.

Package includes

Tachometer x 1
Hall NPN proximity sensor x 1
Magnet x 1

Tips：
1.Please confirm that all the wires are connected correctly.
2. The direction of the magnet must be correct. If it is not correct, please flip the magnet.
3.The distance between the magnet and the sensor must be kept at 2-3mm (0.07"-0.12").

If you have any other questions, please feel free to contact us by email, we will definitely solve the problem for you.