--- product_id: 10170184 title: "Extech MD10 Non-Contact Magnet Detector Pen with Built-in Flashlight - Magnetic Field Tester for Solenoid Valves, Relays, and Coils - HVAC, Automotive, and Industrial Diagnostic Tool" brand: "extech" price: "Rp774802" currency: IDR in_stock: true reviews_count: 13 category: "Extech" url: https://www.desertcart.id/products/10170184-extech-md10-non-contact-magnet-detector-pen-with-built-in store_origin: ID region: Indonesia --- # Compact 6.25" pocket-sized design Built-in bright flashlight Detects AC, DC & permanent magnets Extech MD10 Non-Contact Magnet Detector Pen with Built-in Flashlight - Magnetic Field Tester for Solenoid Valves, Relays, and Coils - HVAC, Automotive, and Industrial Diagnostic Tool **Brand:** extech **Price:** Rp774802 **Availability:** ✅ In Stock ## Summary > 🧲 Light up your magnetic diagnostics with precision and portability! ## Quick Answers - **What is this?** Extech MD10 Non-Contact Magnet Detector Pen with Built-in Flashlight - Magnetic Field Tester for Solenoid Valves, Relays, and Coils - HVAC, Automotive, and Industrial Diagnostic Tool by extech - **How much does it cost?** Rp774802 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/10170184-extech-md10-non-contact-magnet-detector-pen-with-built-in) ## Best For - extech enthusiasts ## Why This Product - Trusted extech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Clear Blue LED Indicator:** Intuitive blue light confirms magnetic presence immediately, eliminating guesswork. - • **Dual-Function Flashlight:** Integrated bright LED flashlight ensures visibility in dim or tight spaces during diagnostics. - • **Ready to Work Out of the Box:** Includes 2 AAA batteries and backed by a 2-year warranty for reliable, hassle-free use. - • **Ultra-Portable & Lightweight:** Slim 6.25 x 0.8 x 1 inch size and just 1.7 oz—fits perfectly on your tool belt or pocket. - • **Instant Magnetic Field Detection:** Non-contact sensing for AC, DC, and permanent magnets—no physical contact needed. ## Overview The Extech MD10 is a pocket-sized, non-contact magnet detector that identifies AC, DC, and permanent magnetic fields with a clear blue LED indicator. Featuring a built-in flashlight and powered by two included AAA batteries, it offers versatile, on-the-go troubleshooting for professionals working with electromagnetically active components. Compact and lightweight, it’s designed for quick, reliable field diagnostics backed by a 2-year warranty. ## Description Non-contact Magnet Detector with Built-In Flashlight. Detect the Presence of a Magnetic Field including AC, DC and Permanent Magnets. Blue LED lights up indicating the presence of a magnetic field. The convenient built in bright flashlight allows for viewing in dimly lit areas. Magnetic field detection range: 63H, 98H, 401H, 810H. Low battery indicator. Compact size with pocket clip. Complete with two AAA batteries. Review: Useful in plant diagnostics - I've just finished testing this. First off, I think it would be much nicer if there was a status LED to say that it's actually powered up, just because the battery could be dead and it would look the same. Others here are bothered by the momentary switch but that doesn't bother me and I like that it can't be left on. The flashlight, which is pretty good, is also a momentary switch. --- Everything I tested was at 24VDC --- Mine picks up MAC valves well, but doesn't see our SMC valves, like the SMC VQ4101 that we have a lot of here. Ice cube relays read well, but the tool has to be near the end with the coil so there's no dragging it across the top of a bank of relays in a panel. Fortunately it has the little flashlight to be able to look the relays over and identify the coil side. Contactors are a little sloppy, they read but trigger the tool from several inches which could lead to false alerts if several contractors are close together. Overall I think this tool is worth the asking price, not perfect, but it's usefulness is greater than the price so I'm doing 5 stars Edit: accidentally discovered the little cap that pulls off the back side and appears to do nothing has a magnet in it to verify the tool with! Review: It works perfect to test industrial solenoid valves - Works as described for industrial solenoid valves. Lost it, buying a replacement. ## Features - Non-Contact Magnetic Detection - Instantly identifies magnetic fields—including AC, DC, and permanent magnets—without having to make any physical contact. - Intuitive Blue LED Indicator - The built-in blue LED precisely illuminates when magnetic fields are detected, ensuring quick and clear status feedback. - Versatile Applications - Ideal for troubleshooting audio speakers, solenoid valves (pneumatic or hydraulic), relay coils, and other electromagnetically active machinery and components. - Compact, Lightweight Design - Measures just 6.25 × 0.8 × 1″ (159 × 21 × 25 mm) and weighs a mere 1.7 oz (48 g), making it ultra-portable and perfect for tool belts or pockets. - Ready to Use Out of the Box - Powered by two included AAA batteries and backed by a 2‑year warranty, ensuring dependable performance from day one. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00M9AX6AK | | Batteries | 2 AAA batteries required. (included) | | Batteries Included? | Yes | | Batteries Required? | Yes | | Battery Cell Type | Alkaline | | Best Sellers Rank | #174,348 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,701 in Handheld Flashlights | | Brand | Extech | | Color | Blue | | Customer Reviews | 4.5 4.5 out of 5 stars (469) | | Date First Available | July 28, 2014 | | EU Spare Part Availability Duration | 2 Years | | Global Trade Identification Number | 00793950330104 | | Included Components | MD10 | | Is Discontinued By Manufacturer | No | | Item Package Quantity | 1 | | Item Weight | 0.705 ounces | | Item dimensions L x W x H | 0.8 x 1 x 6.25 inches | | Item model number | MD10 | | Manufacturer | Extech | | Measurement Type | Magnetometer | | Number Of Pieces | 1 | | Part Number | MD10 | | Power Source | Battery Powered | | Product Dimensions | 0.8 x 1 x 6.25 inches | | Size | 6.25 x 0.8 x 1 inches | | Style | Non-contact Magnet Detector with Built-In Flashlight | | UPC | 793950330104 | | Warranty Description | 1 year | ## Product Details - **Brand:** Extech - **Color:** Blue - **Item Weight:** 20 Grams - **Power Source:** Battery Powered - **Style:** Non-contact Magnet Detector with Built-In Flashlight ## Images ![Extech MD10 Non-Contact Magnet Detector Pen with Built-in Flashlight - Magnetic Field Tester for Solenoid Valves, Relays, and Coils - HVAC, Automotive, and Industrial Diagnostic Tool - Image 1](https://m.media-amazon.com/images/I/61EJGzlZNIL.jpg) ## Questions & Answers **Q: Will this detect a clippard miniature valve coil? or just large ones? i have no idea what magnetic field detection range: 63h, 98h, 401h, 810h is.** A: It should pick up clippards. However, the light that indicates a field is not very bright. I use it to check on the valves for my irrigation system. They are 24AC and not very powerful. **Q: Can this tool be used for magnetic field detection on watches?** A: I'm not exactally sure what you are asking. It will detect a magnetic field that might interfere with some watches. If that is not what you are asking please be more specific. **Q: Will this detect a neodymium magnetic field?** A: Of course, this tester will detect. It starts sensing not so strong magnet like neodymium one in the distance of ~15 cm. **Q: Can it detect GPS cases that use magnets under cars** A: Thank you so much for your interest in our products. The MD10 will detect magnetic fields if they are located in the available ranges of the unit (63, 98, 401, 810 Henry units). Also, it will have to be found in a short span of the source. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Useful in plant diagnostics *by D***E on August 17, 2024* I've just finished testing this. First off, I think it would be much nicer if there was a status LED to say that it's actually powered up, just because the battery could be dead and it would look the same. Others here are bothered by the momentary switch but that doesn't bother me and I like that it can't be left on. The flashlight, which is pretty good, is also a momentary switch. --- Everything I tested was at 24VDC --- Mine picks up MAC valves well, but doesn't see our SMC valves, like the SMC VQ4101 that we have a lot of here. Ice cube relays read well, but the tool has to be near the end with the coil so there's no dragging it across the top of a bank of relays in a panel. Fortunately it has the little flashlight to be able to look the relays over and identify the coil side. Contactors are a little sloppy, they read but trigger the tool from several inches which could lead to false alerts if several contractors are close together. Overall I think this tool is worth the asking price, not perfect, but it's usefulness is greater than the price so I'm doing 5 stars Edit: accidentally discovered the little cap that pulls off the back side and appears to do nothing has a magnet in it to verify the tool with! ### ⭐⭐⭐⭐⭐ It works perfect to test industrial solenoid valves *by J***L on June 16, 2025* Works as described for industrial solenoid valves. Lost it, buying a replacement. ### ⭐⭐⭐⭐⭐ Electric tester *by G***Y on March 3, 2026* Works well ## Frequently Bought Together - Extech MD10 Non-Contact Magnet Detector with Built-in Flashlight - Solenoid Magnet, Solenoid Valve Magnet Tool #TLMKC, Solenoid Valve Troubleshooting Magnet Tool 18mm, Fits Most Industry Valves, 1 Pcs - Rotation Tester and AC Detector for Circulating Pumps etc --- ## 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.id/products/10170184-extech-md10-non-contact-magnet-detector-pen-with-built-in](https://www.desertcart.id/products/10170184-extech-md10-non-contact-magnet-detector-pen-with-built-in) --- *Product available on Desertcart Indonesia* *Store origin: ID* *Last updated: 2026-04-23*