--- product_id: 155998630 title: "DIGITEN 4 Digital Red LED Tachometer RPM Speed Meter + Hall Proximity Switch Magnet Sensor NPN + Sensor Mounting Holder for Lathe Conveyor Belt" brand: "digiten" price: "€ 37.27" currency: EUR in_stock: true reviews_count: 13 category: "Digiten" url: https://www.desertcart.pt/products/155998630-digiten-4-digital-red-led-tachometer-rpm-speed-meter-hall store_origin: PT region: Portugal --- # DC 8-15V power range 5-9999 RPM measurement range 0.56" bright red LED display DIGITEN 4 Digital Red LED Tachometer RPM Speed Meter + Hall Proximity Switch Magnet Sensor NPN + Sensor Mounting Holder for Lathe Conveyor Belt **Brand:** digiten **Price:** € 37.27 **Availability:** βœ… In Stock ## Summary > πŸ”΄ Spin it, see it, own it β€” RPM clarity that keeps you ahead! ## Quick Answers - **What is this?** DIGITEN 4 Digital Red LED Tachometer RPM Speed Meter + Hall Proximity Switch Magnet Sensor NPN + Sensor Mounting Holder for Lathe Conveyor Belt by digiten - **How much does it cost?** € 37.27 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/155998630-digiten-4-digital-red-led-tachometer-rpm-speed-meter-hall) ## Best For - digiten enthusiasts ## Why This Product - Trusted digiten brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Precision RPM Tracking:** Accurately measures motor speeds from 5 to 9999 RPM, empowering you to optimize performance with confidence. - β€’ **Plug & Play Installation:** Includes Hall sensor, magnet, and L-shaped mounting bracket for hassle-free setupβ€”get your system running in minutes. - β€’ **Compact Industrial Design:** Sleek M12 sensor and compact tachometer housing fit seamlessly into lathe, conveyor, or motor setups without bulk. - β€’ **Reliable Signal Detection:** Hall NPN proximity sensor with 2-3mm detection range and 100Hz response frequency guarantees consistent RPM readings. - β€’ **Clear & Responsive Display:** Vibrant 0.56" red LED updates every 0.06-0.5 seconds, ensuring real-time RPM visibility even in busy workspaces. ## Overview The DIGITEN 4 Digital Red LED Tachometer is a robust, easy-to-install RPM speed meter designed for industrial applications like lathes and conveyor belts. Powered by DC 8-15V, it features a bright 0.56" red LED display and a Hall proximity sensor with magnet for precise RPM measurement from 5 to 9999. Its compact M12 sensor and included mounting bracket simplify integration, making it a trusted tool for professionals seeking accurate motor speed monitoring. ## Description Specification Power requirement: DC 8-15V Measure range : 5-9999RPM. Clear zero: Automatic. Clear zero time: about 10s. The greater RPM value, the longer clear zero time. Refresh frequency: 0.2-0.5S@120-1200RPM; 0.25-0.06S@2400-9999RPM. Display: RED 0.56 inch LED Sign: Pusle signal, Hall NPN 3 wires normally closed. Hall proximity model: NJK-5002D Appearance: M12mm cylinder. Best Detection range: 2-3mm (Max: 10mm) Proximity output current: 200mA Detected objects: magnet Response frequency: 100HZ Tachometer dimension: 72x36x20mm, panel cutout Dimension: 68x33mm. Sensor dimention: M12x37mm. Sensor wiring: brown--Power+; blue--Power-; black--signal. Operating temperature: 0 to 50℃. Package includes Tachometer x 1 Hall NPN proximity sensor x 1 Magnet x 1L-shaped sensor mounting bracket x 1 Tips： 1.Please confirm that all the wires are connected correctly. 2. The direction of the magnet must be correct. If it is not correct, please flip the magnet. 3.The distance between the magnet and the sensor must be kept at 2-3mm (0.07"-0.12"). If you have any other questions, please feel free to contact us by email, we will definitely solve the problem for you. Review: A solid tachometer with a couple areas of opportunity - This is a solid budget tachometer which comes with everything you need to properly measure RPM. I would say the only downsides are if you can't use the included L bracket to mount the sensor, and you must affix a magnet. For my use case, this was going onto a milling machine I was converting to run on a VFD with a modern controls system. I wanted to have an accurate tachometer, so I knew what the spindle speed was. This has worked well. Here's a tip when installing this. Power it up and before you install the magnet, move it over the sensor. If you don't get a reading, flip the magnet and retest. Mark the side which needs to be affixed to whatever you're trying to measure the RPM of, so that you ensure you keep the magnet orientated properly. I didn't do this and unfortunately it didn't work, so I had to break the adhesive loose, and redo it. I wish the magnet was marked out of the box so you knew this up front. I'm not going to knock it down, but I do wish this had a wider voltage range of say 8-26V. I am running a 24VDC control system and had to use a small 24 -> 12 volt step down converter to power only this tachometer. That was my oversight and there are other similar devices available with a wider voltage range. Other than it hanging onto the RPM for a bit after the spindle stops, I've found it to be quite reliable and accurate. The camera shutter speed is what causes the display to be difficult to photograph, but in person it's easy to read with no issues. Review: Nice module. inexpensive, easy to mount (snap in). - I bought this to show my lathe's speed. It worked well. A little problem mounting the magnet. Instructions say south pole. I used a magnetic navigational compass to determine north/south of the provided magnet. When I mounted south pole toward the sensor, it didn't work. Turned it around and it did. I epoxied the magnet so unmounting was a nuisance. Connection was simple, just be sure to follow instruction on wire colors. Ground yourself when handling electronics to keep static zero. ## Features - Measure range: 5-9999RPM. - Power requirement:DC 8-15V - Come with hall sensor, magnet and L-shaped bracket, which could be easy for installation - Display:red 0.56" LED - Measure varied motor RPM ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07X6CN99R | | Best Sellers Rank | #35,568 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #10 in Industrial Tachometers | | Brand | DIGITEN | | Brand Name | DIGITEN | | Customer Reviews | 4.3 out of 5 stars 726 Reviews | | Item Weight | 0.09 kg | | Manufacturer | DIGITEN | | Material | Metal | | Material Type | Metal | | Model | RPM1204RHA-H | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | RPM1204RHA-H | | Thread Style | M12 | | Thread Type | M12 | | Unit Count | 1 Count | ## Product Details - **Brand:** DIGITEN - **Item Weight:** 0.09 kg - **Material:** Metal - **Number of Items:** 1 - **Thread Type:** M12 ## Images ![DIGITEN 4 Digital Red LED Tachometer RPM Speed Meter + Hall Proximity Switch Magnet Sensor NPN + Sensor Mounting Holder for Lathe Conveyor Belt - Image 1](https://m.media-amazon.com/images/I/61-GFScOflL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ A solid tachometer with a couple areas of opportunity *by D***. on June 15, 2026* This is a solid budget tachometer which comes with everything you need to properly measure RPM. I would say the only downsides are if you can't use the included L bracket to mount the sensor, and you must affix a magnet. For my use case, this was going onto a milling machine I was converting to run on a VFD with a modern controls system. I wanted to have an accurate tachometer, so I knew what the spindle speed was. This has worked well. Here's a tip when installing this. Power it up and before you install the magnet, move it over the sensor. If you don't get a reading, flip the magnet and retest. Mark the side which needs to be affixed to whatever you're trying to measure the RPM of, so that you ensure you keep the magnet orientated properly. I didn't do this and unfortunately it didn't work, so I had to break the adhesive loose, and redo it. I wish the magnet was marked out of the box so you knew this up front. I'm not going to knock it down, but I do wish this had a wider voltage range of say 8-26V. I am running a 24VDC control system and had to use a small 24 -> 12 volt step down converter to power only this tachometer. That was my oversight and there are other similar devices available with a wider voltage range. Other than it hanging onto the RPM for a bit after the spindle stops, I've found it to be quite reliable and accurate. The camera shutter speed is what causes the display to be difficult to photograph, but in person it's easy to read with no issues. ### ⭐⭐⭐⭐⭐ Nice module. inexpensive, easy to mount (snap in). *by D***E on November 19, 2024* I bought this to show my lathe's speed. It worked well. A little problem mounting the magnet. Instructions say south pole. I used a magnetic navigational compass to determine north/south of the provided magnet. When I mounted south pole toward the sensor, it didn't work. Turned it around and it did. I epoxied the magnet so unmounting was a nuisance. Connection was simple, just be sure to follow instruction on wire colors. Ground yourself when handling electronics to keep static zero. ### ⭐⭐⭐⭐ works well *by L***. on November 4, 2025* worked well until magnet came off. Do you sell replacement magnets ? ## Frequently Bought Together - DIGITEN 4 Digital Red LED Tachometer RPM Speed Meter + Hall Proximity Switch Magnet Sensor NPN + Sensor Mounting Holder for Lathe Conveyor Belt - Junction Box, Zulkit Project Box IP65 Waterproof Outdoor Box ABS Plastic Electrical Boxes Electronic Enclosure Black 3.94 x 2.68 x 1.97 inch (100X68X50mm) (Pack of 2) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/155998630-digiten-4-digital-red-led-tachometer-rpm-speed-meter-hall](https://www.desertcart.pt/products/155998630-digiten-4-digital-red-led-tachometer-rpm-speed-meter-hall) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-18*