DIGITEN 4 Digital Green LED Tachometer RPM Speed Meter+Hall Proximity Switch Sensor NPN
Power requirement:DC 8-15V
Measure range : 5-9999 RPM.
Clear zero: Automatic.
Clear zero time: about 10s.the greater the RPM value,the longer the clear zero time.
Refresh frequency: 0.2-0.5S@120-1200RPM;0.25-0.06S@2400-9999RPM.
Measure accuracy: RPM<5000,±2;RPM>5000,±3.
Display: Green 0.56 inch LED
Sign: Pusle signal,Hall NPN 3 wires normally open.
Hall proximity model: NJK-5002C
Appearance: M12mm cylinder.
Detection range: 10 mm
Proximity output current: 200 mA
Detected objects: magnet
Response frequency: 100HZ
Tachometer dimension: 72x36x20mm,panel cutout Dimension:68x33mm.
Sensor dimention: M12x10x55mm.
Operating temperature: 0 to 50°C.
Tachometer x 1
Hall NPN proximity sensor x 1
Worked great, installed it in my mini lathe and it works perfectly. Good brightness for the low current drain (about 20ma). I was able to use a tiny encapsulated 120VAC to 12V power supply rated 160ma and it's coasting!
I used this on a commercial chipper and really didn't think it would hold up to the vibration. It works great
Easy to hook up. I used it on my drill press. I did not need to glue the magnet on, it’s pretty strong and stays where you put it, even at 3500 RPM.
Good simple tach. I 3D printed a mounting bracket for the sensor and epoxied the magnet in place and haven’t had any issues. I power mine from a 12vdc converter installed in my VFD enclosure, which I would highly recommend over battery power.
I ordered this to use on my wood lathe. It seems to work very well, the numbers are easy to read. When I ordered it it said it would be delivered at the end of the week, shipped by Amazon - it was shipped from China and took almost a month to arrive!