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Item #:
84493809
Inductive Proximity Sensor SN04-N Normally Open Detection Approach Switch NPN NO with TL PL SN Bracket (Blue, 4 Pack)
Item #:
84493809
MWK 61117
Price Details
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*All items will import from US
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Imported from USA store
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Order now and get it around Thursday, August 27
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The function of proximity switches is to act when approaching metal, and are widely used in machine tools, metallurgy, chemical industry, light textile and printing industries.
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What Stands Out
Reliable Detection
The SN04-N sensor offers precise and dependable detection for various applications, ensuring consistent performance in industrial environments and minimizing false readings for enhanced operational accuracy.
Easy Installation
Designed with a user-friendly bracket, the sensor allows for quick and simple installation, reducing setup time and making it accessible for both experienced and novice users in any setting.
Pack Value
This product comes in a convenient 4-pack, providing exceptional value and ensuring you have multiple units for extended applications, making it cost-effective for large scale projects.
Product Details
Who Should Buy?
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Industrial Automation
Ideal for automating machinery, sensing object proximity to enhance operational efficiency and safety.
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DIY Projects
Perfect for hobbyists incorporating proximity sensing in their custom robotics or electronic projects.
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Home Security
Useful in home security systems to detect intrusions or monitor entrances effectively.
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Highly Sensitive Tasks
Not suitable for applications requiring precise measurements or sensitivity beyond standard proximity detection.
Product Description
Inductive Proximity Sensor SN04-N Normally Open Detection Approach Switch NPN NO with TL PL SN Bracket (Blue, 4 Pack)
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Customer Questions & Answers
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Question:
What is the working principle of the Inductive Proximity Sensor SN04-N?
Answer: The Inductive Proximity Sensor SN04-N operates on the principle of electromagnetic induction. It detects metallic objects without physical contact, utilizing an oscillating electromagnetic field. When a metal object approaches the sensor’s sensing area, it disrupts this field, triggering a switch action. This sensor is particularly useful in automated systems where precise detection is crucial, such as in assembly lines or robotic operations. -
Question:
What is the detection range of the SN04-N Inductive Proximity Sensor?
Answer: The SN04-N has a detection range of approximately 2 to 4 mm, making it ideal for applications where close-range detection of metallic objects is required. This concise range ensures reliable operation in various environments, such as manufacturing setups or material handling systems, where space constraints or specific positioning is paramount. -
Question:
Can the SN04-N sensor be used in harsh environments?
Answer: Yes, the SN04-N sensor is designed to endure harsh environmental conditions, including dust and moisture. Its robust construction and sealing help prevent damage from external elements, making it suitable for use in industries such as automotive, food processing, and packaging, where durability is essential for consistent performance. -
Question:
How does the Normally Open function of the SN04-N work?
Answer: The Normally Open (NO) function means that the sensor remains off until an object is detected. When a metallic object approaches, the sensor activates, closing the circuit and allowing current to flow. This feature is beneficial for controlling machinery or triggering alarms only when an object is within range, helping to enhance safety and prevent unnecessary activation. -
Question:
What are the advantages of using NPN output in the SN04-N sensor?
Answer: NPN output is beneficial because it allows for easy integration with a variety of control systems. When the sensor detects a metal object, it switches the output to ground, making it compatible with many PLCs and relay systems, fostering versatility in applications ranging from manufacturing automation to accessibility systems in smart buildings. -
Question:
How can I mount the SN04-N sensor?
Answer: The SN04-N sensor comes with a TL PL SN bracket, designed for easy mounting. This bracket allows for precise alignment and stabilization during installation, preventing misalignment that can affect sensor performance. This ease of installation makes it ideal for use in machinery setups or automation systems that require consistent sensor positioning. -
Question:
Is it possible to use multiple SN04-N sensors simultaneously?
Answer: Yes, multiple SN04-N sensors can be used simultaneously, depending on the application. However, it’s important to consider potential interference between sensors if they are placed too close together. In automated systems such as conveyor belts or assembly lines, strategically positioning sensors ensures accurate detection without causing cross-talk, optimizing operational efficiency. -
Question:
What type of output signal does the SN04-N provide?
Answer: The SN04-N provides a digital output signal via its NPN configuration, which makes it suitable for on/off control applications. This simplicity in output allows for straightforward integration into various control systems, making it ideal for tasks like object detection and counting in manufacturing processes where clear signal output is crucial. -
Question:
Can the SN04-N be used in conjunction with microcontrollers?
Answer: Yes, the SN04-N can effectively interface with microcontrollers like Arduino or Raspberry Pi. By using the NPN output signal, developers can easily set up detection logic in their projects, enabling various applications such as robotics, automation, and interactive installations, expanding the potential use of the proximity sensor in creative engineering. -
Question:
Where can I buy Inductive Proximity Sensor SN04-N Normally Open Detection Approach Switch NPN NO with TL PL SN Bracket Blue, 4 Pack?
Answer: You can purchase the Inductive Proximity Sensor SN04-N, including the 4 Pack with TL PL SN Bracket, at Ubuy. Ubuy offers a wide variety of sensors and electronic components, making it a convenient choice for sourcing high-quality products for your projects in Malawi.
Haldzemo Inductive Editorial Review
The Inductive Proximity Sensor SN04-N has garnered mixed reviews from customers, primarily highlighting its functionality and quality while also exposing some issues regarding reliability and packaging. Users have praised the sensor for its excellent repeatability and the inclusion of necessary mounting hardware, along with clear markings for easy installation. The robust epoxy potting and sturdy bracket also receive commendation, making this sensor suitable for various applications. However, customer experiences have been marred by product reliability, with reports of a failure rate as high as 25% in some cases. One reviewer noted that while the majority of their sensors were functioning optimally, one unit failed within days of usage. This has prompted some users to purchase additional sensors as backups, reflecting concerns over long-term reliability. Another point of contention revolves around the misleading packaging. Several customers ordered sets of four but received only two sensors, which has led to frustration, especially as they faced difficulty when attempting to resolve this issue with the seller. In summary, while the Inductive Proximity Sensor SN04-N delivers solid performance and is easy to install, Prospective buyers should be aware of potential reliability issues and discrepancies in packaging. **
Customer Reviews & Ratings
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Pros
- Good functionality with high repeatability
- Included screws and sturdy mounting bracket
- Clear markings for easy installation
- Fully potted in epoxy for durability
Cons
- Reports of sensor failures (up to 25% failure rate)
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Mohammad
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“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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Chitra
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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kund
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23-Jul-26 · via Trustpilot
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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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23 July 2026 · via Trustpilot
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MWK 61117
Order now and get it around Thursday, August 27
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Inductive Proximity Sensor for metal/iron detection
- Available in different models and output types
- LED working indicator for easy monitoring
- Detection distance of 4mm
- Widely used in machine tools, metallurgy, chemical industry, textile, and printing
- Used for limit, counting, positioning control, and automatic protection
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