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Product Description:
Item name : Proximity Sensor Switch SN04-N
Theory : Inductive Type Sensor
Wire Type :DC 3 Wire Type (Brown, Black, Blue)
Output Type : NPN, NO
Detecting Distance : 4mm
Switch Appearance Type : Angular Column Type
Voltage : DC 6-36V
Current Output : 300mA
Detect Object : Iron
Size : 34 x 18 x 18mm (1.4" x 0.7" x 0.7")
External Material : ABS Plastic
Net Weight : 0.1(lb)
Ken F
2025-08-18 10:14:32
Replacement Part for my CNC , The size was right, the mounting was close enough to work without modifications. It work great . and a good price.
Kace
2025-08-16 18:44:36
The labels actually matched the parts and worked correct.
Brian
2025-07-27 10:14:45
bought a total of 6 of these(2 packages of 3) less than a year ago, they worked well initially. Now that I have exhausted the two spares(4 of the 6 were in use since purchasing) and a third one just failed I will be trying another brand.
RLR
2025-05-03 12:33:25
When the 2nd factory sensor went bad on my Shapeoko Pro CNC machine I decided to see what else was available. I found these NPN NO sensors and they are a PERFECT match!It took me about 10 minutes to connect it to the existing wiring on my Z axis and VOILA! The sensor worked perfectly!
Daniel Schnorrenberg
2025-01-28 09:09:00
Works perfectly in this machine. 5 minutes to install.
Michael Alexander
2025-01-16 17:17:17
Piece of junk. Tried one but it died within three months. Second one lasted 5 months. Also LED's are always on it just gets a little brighter when actuated.
Customer
2024-12-22 15:18:11
Very good and accurate product, does what it’s supposed to do!
Tom
2024-12-08 17:04:11
Used this to replace another prox sensor that is in same package but different manufacturer. Although the detection sensor and output work correctly, I noticed that the indicator LED is always on with my setup. I have BRN connected to +24VDC, BLU connected to GND and BLK connected to input pin on Arduino set to input with internal pull-up. Since the Arduio is operating at +5VDC the internal pull-up on the pin is causing the prox sensor indicator LED to always be on, however the NPN output is triggering correctly with prox detection. It will work for me for now but will be looking for one that correctly displays the indicator LED like the existing one I am replacing
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