Metal Proximity Sensor SN04-N, NPN Normally Open 4 mm

✅ Detect without contact. The sensor responds to a suitable metal target approaching its sensing face.

✅ Match a low-voltage circuit. The marked supply range is 5–30 V DC.

✅ Position and observe it. Slotted fixing points support mounting, and an indicator shows the sensing state.

✅ Check the target first. The 4 mm distance is stated for a suitable metal target.

Non-contact metal detection for control builds

The SN04-N is a three-wire metal proximity switch with an NPN normally open output and a sensing indicator. It suits a compatible low-voltage control setup that expects this output type. Check the target material, mounting clearance and controller input compatibility, then follow the unit markings and instructions for connection.

Technical details

• Model: SN04-N
• Three-wire metal proximity switch
• Output: NPN, normally open
• Marked supply: 5–30 V DC
• Specified sensing distance: 4 mm for a suitable metal target
• Supplied as one wired sensor

Check your controller input and add the SN04-N to your sensing parts.