This is the 30V variant of the SN04-N NPN NO 5mm BN-5-30v Detection Distance Proximity Detector Sensor in Other Proximity Sensor & Modules. Available at ₹135.70 (₹115.00 + GST) with free shipping across India.
Looking for Sn04 Sensor 5mm? SN04-N NPN NO 5mm BN-5-30v Detection Distance Proximity Detector Sensor is available at Zbotic with fast shipping across India.
The SN04-N NPN NO 5mm BN-5-30v Detection Distance Proximity Detector Sensor is a reliable and durable inductive sensor designed for detecting metal objects at close range. Operating on a wide voltage range of BN-5-30V , this sensor is ideal for industrial automation, robotics, and smart systems where non-contact metal detection is required. It features a 5mm detection distance and NPN Normally Open (NO) output configuration for versatile integration.
Thanks to its compact design and IP67-rated enclosure, the SN04-N sensor performs well in harsh environments, providing consistent operation even in dusty or wet conditions. With a fast response frequency of up to 500Hz, it can be used in systems that require rapid detection and switching. A built-in LED indicator provides real-time feedback for power and object detection status.
This module is a SN04-N NPN NO 5mm Distance Detector Proximity Sensor Switch. It detects metallic objects within 4mm of its surface.
The detection distance may vary slightly depending on the object’s shape, size, and material. The module can sense through thin, non-metallic materials. It has an LED indicator that turns on when the module is powered and brightens when it senses an object.
Wire Connections:
- Brown wire: 10 ~ 30 VDC (+Ve).
- Blue wire: 0 V (GND).
- Black wire: signal.
Features
- Red LED checks the state of the proximity sensor
- High repeated positioning accuracy
- High switching frequency
- Wide voltage range
- Antivibration, dust, water and oil prevention
- Reverse power protection, short circuit protection, directly connecting with PLC.
- It can replace small switches and limit switches.
Specification
| Model | SN04-N |
| Sensor Type | Inductive Proximity |
| Output Type | NPN Normally Open (NO) |
| Detection Distance | 5mm |
| Operating Voltage | BN-5-30v |
| Current Consumption | ≤5 mA |
| Response Frequency | 500Hz max |
| Protection Rating | IP67 |
| Cable Length | 90cm |
| Target Material | Metal only |
Package Includes
- 1 x SN04-N NPN NO 5mm BN-5-30v Detection Distance Proximity Detector Sensor
SN04-N NPN NO 5mm BN-5-30v Detection Distance Proximity Overview
The SN04-N NPN NO Proximity Detector Sensor is an inductive proximity switch designed to detect metal objects within a 5 mm range. Operating on a wide 5 – 30 V DC supply, it provides a normally open NPN output for seamless integration into industrial automation, robotics, and smart control systems.
Key Features of SN04-N NPN NO 5mm BN-5-30v Detection Distance Proximity
- 5 mm metal detection range for precise, close-range sensing
- NPN normally open output configuration for easy interfacing
- Wide 5–30 V DC operating voltage for flexible power supply options
- Compact, rugged housing with IP67 rating for dust and water resistance
- Durable construction for reliable performance in industrial environments
- Genuine product with fast shipping across India from Zbotic
Applications and Use Cases
- Metal object detection on conveyor systems in manufacturing plants
- Position feedback for robotic arms and automated pick-and-place machines
- End-of-travel sensing on sliding gates or machine guards
- Metal part counting and quality control in assembly lines
- Level detection of metallic components in storage bins
How to Use SN04-N NPN NO 5mm BN-5-30v Detection Distance Proximity
Mount the sensor so its sensing face is aimed at the target metal surface within 5 mm. Connect the brown wire to a 5–30 V DC positive supply, the blue wire to 0 V (ground), and the black wire to your control input or relay coil. Power on the sensor, then verify that the output switches when a metal object enters the sensing range.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
What wiring connections are required for the SN04-N sensor?
Connect the brown wire to 5–30 V DC positive, the blue wire to ground (0 V), and the black wire to your control input or load. When a metal target is detected within 5 mm, the NPN output switches on.
Can the SN04-N detect stainless steel or aluminum?
The SN04-N offers optimal detection for ferrous metals like iron and steel at the full 5 mm range. Non‐ferrous materials such as stainless steel or aluminum will be detected at a slightly reduced distance.
Is the sensor suitable for outdoor or wet environments?
Yes, the SN04-N features an IP67-rated enclosure, making it dust‐tight and protected against temporary immersion in water, ensuring reliable operation in harsh or wet conditions.
Technical Specifications
| Model | SN04-N |
|---|---|
| Size | 5mm |
| SKU | AI7074 |
| Weight | 45 kg |
| Availability | Out of Stock |
Applications & Use Cases
The SN04-N NPN NO 5mm BN-5-30v Detection Distance Proximity Detector Sensor is a versatile other proximity sensor & modules used across a wide range of applications including electronics projects, DIY builds, prototyping, and educational experiments.
Common use cases:
- Integrating into a custom electronics project
- Learning and experimenting with circuits
- Replacing or upgrading components in existing setups
This product is ideal for electronics enthusiasts, engineers, and students.
Technical Tip: Always verify voltage and current requirements before connecting to your circuit. Check datasheets for detailed specifications and pin configurations.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components

Milan Tandon (verified owner) –
Perfect SN04-N NPN NO 5mm BN-5-30v Detection for my automation project. Integrates seamlessly with my microcontroller.
Sunil Joshi (verified owner) –
This SN04-N NPN NO 5mm BN-5-30v Detection works great with Arduino. Easy to wire up and code.
Abhishek Modi (verified owner) –
Perfect for my weather station. This SN04-N NPN NO 5mm BN-5-30v Detection gives consistent readings day and night.
Nakul Sharma (verified owner) –
Perfect for my weather station. This SN04-N NPN NO 5mm BN-5-30v Detection gives consistent readings day and night.
Naveen Joshi (verified owner) –
Okay SN04-N NPN NO 5mm BN-5-30v Detection. Had to add a capacitor to stabilize readings. Works now.
Anand Grewal (verified owner) –
Perfect for my weather station. This SN04-N NPN NO 5mm BN-5-30v Detection gives consistent readings day and night.
Tejas Luthra (verified owner) –
Perfect SN04-N NPN NO 5mm BN-5-30v Detection for my automation project. Integrates seamlessly with my microcontroller.
Kabir Rao (verified owner) –
Very satisfied with this SN04-N NPN NO 5mm BN-5-30v Detection. Library support is good and it’s easy to interface.
Divyansh Mukherjee –
Bought this SN04-N NPN NO 5mm BN-5-30v Detection for my college project. Accurate readings, easy to code. Very happy!
Akshat Khanna (verified owner) –
Pretty good SN04-N NPN NO 5mm BN-5-30v Detection. Documentation could be better but the sensor itself is solid.
Rakesh Nair (verified owner) –
Excellent sensitivity and range on this SN04-N NPN NO 5mm BN-5-30v Detection. Works better than I expected.
Kunal Menon (verified owner) –
Outstanding accuracy from this SN04-N NPN NO 5mm BN-5-30v Detection. Compared with a professional instrument, readings match closely.
Aman Das (verified owner) –
This SN04-N NPN NO 5mm BN-5-30v Detection works great with Arduino. Easy to wire up and code.
Chitra Chopra (verified owner) –
Good quality SN04-N NPN NO 5mm BN-5-30v Detection. Some variation in readings but within acceptable range.
Kapil Iyer –
Superb SN04-N NPN NO 5mm BN-5-30v Detection! Using it in my environmental monitoring system. Very reliable data.
Gauri Mukherjee (verified owner) –
Nice SN04-N NPN NO 5mm BN-5-30v Detection. Readings are mostly accurate. Good enough for my hobby project.
Rajesh Shetty –
Excellent sensitivity and range on this SN04-N NPN NO 5mm BN-5-30v Detection. Works better than I expected.
Rakesh Verma –
Nice SN04-N NPN NO 5mm BN-5-30v Detection. Readings are mostly accurate. Good enough for my hobby project.
Vikram Gupta (verified owner) –
Okay SN04-N NPN NO 5mm BN-5-30v Detection. Had to add a capacitor to stabilize readings. Works now.
Rohan Bhat (verified owner) –
Perfect SN04-N NPN NO 5mm BN-5-30v Detection for my automation project. Integrates seamlessly with my microcontroller.
Ashish Chopra –
Very satisfied with this SN04-N NPN NO 5mm BN-5-30v Detection. Library support is good and it’s easy to interface.
Arnav Srivastava –
Perfect SN04-N NPN NO 5mm BN-5-30v Detection for my automation project. Integrates seamlessly with my microcontroller.
Varun Hegde (verified owner) –
Outstanding accuracy from this SN04-N NPN NO 5mm BN-5-30v Detection. Compared with a professional instrument, readings match closely.
Arun Trivedi –
This SN04-N NPN NO 5mm BN-5-30v Detection is a must-have for sensor projects. Plug and play with Arduino.