--- product_id: 71746492 title: "Hall Sensor Proximity Switch NPN 3-Wires Normally Closed NC with Magnet" price: "£7.87" currency: GBP in_stock: true reviews_count: 5 url: https://www.desertcart.co.uk/products/71746492-hall-sensor-proximity-switch-npn-3-wires-normally-closed-nc store_origin: GB region: United Kingdom --- # 6-36VDC wide voltage range 10mm precise detection range 320kHz ultra-fast switching frequency Hall Sensor Proximity Switch NPN 3-Wires Normally Closed NC with Magnet **Price:** £7.87 **Availability:** ✅ In Stock ## Summary > ⚡ Detect with precision, switch with speed — never miss a beat! ## Quick Answers - **What is this?** Hall Sensor Proximity Switch NPN 3-Wires Normally Closed NC with Magnet - **How much does it cost?** £7.87 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/71746492-hall-sensor-proximity-switch-npn-3-wires-normally-closed-nc) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rapid Response:** 320kHz switching frequency delivers lightning-fast signal changes for real-time control. - • **Precision Detection:** 10mm sensing range ensures accurate magnet proximity detection every time. - • **Robust M12 Cylinder Design:** Compact and durable form factor built to withstand demanding environments. - • **Wide Voltage Compatibility:** Operates seamlessly from 6 to 36VDC, fitting diverse industrial setups. - • **Polarity-Sensitive Magnet Detection:** Smart sensing that recognizes magnet polarity, preventing false triggers. ## Overview The Hall Sensor Proximity Switch NPN 3-Wires Normally Closed NC with Magnet is a compact M12 cylindrical sensor designed for precise magnet detection within a 10mm range. Operating on a versatile 6-36VDC power supply, it features a rapid 320kHz switching frequency and polarity-sensitive detection, making it ideal for industrial automation and CNC applications requiring reliable, real-time proximity sensing. ## Description Features & Specifications Power requirement:6-36VDC Output type: NPN 3-wires normally closed Model:NJK-5002D Appearance:M12mm cylinder. Detection range: 10mm Output current: 200mA Detected objects: magnet Switching frequency: 320KHZ Cable length:1.1m Wiring:brown-Power+;blue-Power-;black-signal. Packaging include Hall sensor switch x 1 Review: Works good but has a quirk. - First one didn't work. Was conducting all the time. The second one works fine. The sensor switches the negative if that matters to anyone. That info isn't in the description but it was important for my usage. More good information is it senses polarity of the magnet. It won't switch if you turn the magnet over. Review: Pretty good. - Did the job, used it on my CNC, noticeable proximity delta between aluminum and steel. ## Features - Power requirement:6-36VDC - Output type: NPN 3-wires normally Closed - Appearance:M12mm cylinder - Detection range: 10mm - Detected objects: magnet ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.6 out of 5 stars 31 Reviews | ## Images ![Hall Sensor Proximity Switch NPN 3-Wires Normally Closed NC with Magnet - Image 1](https://m.media-amazon.com/images/I/71ZXd8C8NpS.jpg) ## Questions & Answers **Q: how much is weight of the magnet?** A: It is very light weight dimensions are approximately 12mm(1/2in) diameter by 2mm(1/8in) thick, basically less than a dime! Hope helps! **Q: Does this unit require an external pull down resistor?** A: No. The current of output signal is less than 200mA, It can directly connect to meter or your system. **Q: Is magnet shown included in this price? Packaging indicates only sensor - no magnet!** A: It come with sensor and magnet. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works good but has a quirk. *by K***R on May 1, 2025* First one didn't work. Was conducting all the time. The second one works fine. The sensor switches the negative if that matters to anyone. That info isn't in the description but it was important for my usage. More good information is it senses polarity of the magnet. It won't switch if you turn the magnet over. ### ⭐⭐⭐⭐⭐ Pretty good. *by I***X on April 17, 2025* Did the job, used it on my CNC, noticeable proximity delta between aluminum and steel. ### ⭐⭐⭐⭐⭐ Good quality. *by G***T on April 3, 2025* Good value, item returned because it did not work for my kill switch application. ## Frequently Bought Together - DIGITEN Hall Sensor Proximity Switch NPN 3-Wires Normally Closed NC with Magnet - Twidec/10mm Hall Effect Proximity Sensor Inductive Switch NPN NO（Normally Open) with Magnet DC5-30V NJK-5002C - HiLetgo 2pcs NJK-5002C Hall Effect Sensor Proximity Switch NPN 3-Wires Normally Open --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/71746492-hall-sensor-proximity-switch-npn-3-wires-normally-closed-nc](https://www.desertcart.co.uk/products/71746492-hall-sensor-proximity-switch-npn-3-wires-normally-closed-nc) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-19*