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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.
Display: GREEN 0.56 inch LED
Sign: Pusle signal, Hall NPN 3 wires normally closed.
Hall proximity model: NJK-5002D
Appearance: M12mm cylinder.
Best Detection range: 2-3mm (Max: 10mm)
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℃.
Package includes
Tachometer x 1
Hall NPN proximity sensor x 1
Magnet x 1
L-shaped sensor mounting bracket 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.
Thomas A. Bell
2025-08-25 13:32:04
Straight forward to power and wire up. Provides reliable RPM to my machine tools.
OverACliff
2025-07-18 21:46:14
Installed this yesterday on my PM-1340GT lathe. Works. Would recommend.
Mike
2025-07-01 20:23:23
It worked as expected as a tachometer for my wood lathe.1) A wiring diagram is provided but there are many YouTube vids available if you have problems. A power supply (not provided) and the sensor need to be soldered or joined as no connector is provided.2) It comes as 2 circuit boards mounted in a bezel so the rear is exposed and you may want to add a case.3) As stated in the description it takes 10-20 seconds to show 0 RPM after rotation ends and no provision how to adjust it shorter.4) I am not sure it reads the true RPM - it is consistently ~12% lower than my lathe though on 2 induction motors (a grinder and a pump) it reads within 10-15 RPM of the motors' specs. Probably a 'Close Is Good Enough' for the lathe's RPM setting and within range of induction motors' specs.Conclusion: Not perfect but a great bargain for the price - I'd recommend this product and buy it again.
dumitru maxim
2025-05-19 13:11:20
THANKS
KJ
2025-05-14 15:43:28
Easy to use. Just be sure to get the magnet in the right way. I had to use a 15v power supply as it wouldn't start with a 12v one. An old cordless phone power supply did the job.
Vincent M. Hoang
2025-05-03 11:18:54
The media could not be loaded.
Kindle Customer
2025-05-02 10:27:02
Seems like it would be a great tachometer, but even after spending 90 bucks to get my lathe drilled so I could recess the magnet into the shaft, I never could get it to read properly.
Robert M. Wise
2024-12-20 15:15:07
This unit (or one of the other colors) is my go-to standard part for adding RPM meter to old shop tools.
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