SN04-N Metal Proximity Sensor, NPN Normally Open

Add metal-target detection to a compatible low-voltage control setup with the SN04-N proximity switch. The compact rectangular sensor provides an NPN normally open output and an indicator to help you observe its sensing state.

Detect a nearby metal target without contact

• ✅ Detect without a moving contact — the sensor responds to a suitable metal target approaching its sensing face.
• ✅ Match a low-voltage control circuit — the marked 5–30 V DC supply range helps you check the power requirements.
• ✅ Mount and observe the sensor — slotted fixing points support positioning, while the indicator shows its sensing state.

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 the target material, mounting clearance and controller input compatibility; follow the actual unit markings and instructions for connection.

The images show the sensor body, label, mounting slots and wired lead.

Check your controller and target requirements, then add the SN04-N to your sensing components.