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Description:
It is a high-precision digital speed meter and a proximity sensor. The proximity sensor switch and the motor need to be fixed with a bracket. The more stable the fixing, the month is helpful for stable detection.
Features:
1. The proximity sensor is accurate and the speed measurement is reliable.
2. High speed measurement range.
3. It is an AC controller.
4. It is simple and convenient to install.
5. LED digital screen display.
Specification:
Product name: AC 110V 220V 4Bit Digital LED Tachometer
Work Voltage: AC 110V-230V
Measuring Range: 10-9999
Measurement Accuracy: +/- 0.1%
Display Refresh Rate: 3 times/sec
Over-range Display: display "----"
Display screen: 4Bit 0.56in Red
Work Temperature: -20℃~85℃
Work Humidity: 10%~85%RH
Display Size: 80*70*28mm
Sensor Size: 56*25*25mm
Package list :
1pcs AC 110V 220V 4Bit Digital LED Tachometer
1pcs NJK-5002C Proximity Sensor
1pcs 10cm XH2.54-3P Cable
Kindle Customer
Reviewed in the United States on March 30, 2024
I bought this to use with a variable-speed drill press I retro-modded. It works well now. A little slow on response, but I'm using it in the 150-1,200 rpm range so that's to be expected. Once it settles down it does fine. I especially like that this tach runs on 115 VAC so I don't need a 12VDC power supply in my control box.The magnet supplied is worthless. Throw it away. To use the supplied magnet, the sensor had to be within feeler gauge range of the magnet. I tossed it and used a good neodymium magnet and it works with a clearance of around an inch!Be aware that the sensor is sensitive to the orientation of the magnet. One side of the magnet will not trigger it at all, the other works. Wave the magnet over the sensor a few times to find the right side and MARK IT. Be sure you install the magnet with that side facing the sensor.First picture is installed in the control box of my drill press. Second is sender magnet mounted it to the spindle sheave of the press. I used a good structural epoxy to secure it after filing a flat on the sheave. Third picture is the sensor mounted inside the head of the press. The mount is a piece of 1/4" aluminum plate.
Laura Avery
Reviewed in the United States on December 19, 2024
The media could not be loaded.
Jordan A.
Reviewed in the United States on January 7, 2024
installation is very straight forward Except that they dont mention that the hall sensor is sensitive to the polarity of the magnet. So if you have it all set up and it is only showing LLLL, try flipping the magnet around. I hope this helps someone.
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