--- product_id: 90109839 title: "integrative USB Hart Modem USB to Hart Protocol Modem Hart Transmitter HART Convertor (Suitable for All Devices Which Support Hart Protocol)" brand: "gltl" price: "£129.83" currency: GBP in_stock: true reviews_count: 8 category: "Gltl" url: https://www.desertcart.co.uk/products/90109839-integrative-usb-hart-modem-usb-to-hart-protocol-modem-hart store_origin: GB region: Great Britain --- # Built-in isolated 24V DC output USB v2.0 & CDC v2.0 compatible Operates -20°C to +80°C integrative USB Hart Modem USB to Hart Protocol Modem Hart Transmitter HART Convertor (Suitable for All Devices Which Support Hart Protocol) **Brand:** gltl **Price:** £129.83 **Availability:** ✅ In Stock ## Summary > ⚙️ Power Your HART Devices with Precision & Portability ## Quick Answers - **What is this?** integrative USB Hart Modem USB to Hart Protocol Modem Hart Transmitter HART Convertor (Suitable for All Devices Which Support Hart Protocol) by gltl - **How much does it cost?** £129.83 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/90109839-integrative-usb-hart-modem-usb-to-hart-protocol-modem-hart) ## Best For - gltl enthusiasts ## Why This Product - Trusted gltl brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug & Play USB Power:** Seamlessly powers and connects via standard USB interface for instant setup and mobility. - • **Rugged Industrial Design:** Engineered for extreme temps, vibration, and EMI—built to thrive in harsh environments. - • **Universal HART Compatibility:** Effortlessly communicates with all major HART devices from Rosemount to Siemens—no brand left behind. - • **Real-Time LED Status Monitoring:** Stay in control with clear TX/RX indicators for instant operational feedback. - • **Integrated 250Ω Precision Resistor:** No extra wiring needed—streamline your communication tests with built-in resistance. ## Overview The GLTL SM100-C Integrative USB HART Modem is a compact, industrial-grade communication tool designed for seamless integration with any HART protocol device. Featuring USB v2.0 compatibility, built-in isolated 24V power output, and a rugged design that withstands extreme temperatures and electromagnetic interference, it ensures reliable, transparent data transfer across all major HART instruments. Ideal for professionals demanding efficient, portable, and universal HART communication solutions. ## Description Product description Product Introduction The SM100 - C is a HART intelligent communicator designed by GLTL and complied with the industrial standard. It communicates with any manufacturer of HART instruments, such as Rosemount, E + H, Siemens, Cologne, Yokogawa, SIC etc. The appearance is complied with integrated design, enabling to install and carry portably. The communicator is compatible with a standard USB interface and serial bus power supply to ensure the convenience and quickness. Since the SM100 - C intelligent communicator is specially designed for industrial product integration, its design specialized in the temperature range, vibration, electromagnetic compatibility and interface diversity etc.. The SM100 - C ensures the stable and high efficient operation in the bad environment and makes it ideal for high quality with the device. 24V output connected with pressure transmitter Connect to Rosemount 5400 radar level gauge Connect with BST6800T level gauge Connect with E+H flowmeter Connect with EJA differential pressure transmitter Connect with Honeywell temperature sensor Connect with Siemens instrument Connect with thickness gauge Product Specifications; ● Supports Operation System Windows XP, Windows7, Windows10; ● Compatible with USB V1.1, USB CDC V1.1 Standard; ● Compatible with USB V2.0, USB CDC V2.0 Standard; ● USB Bus Power Supply（Uninsulated Cables）, DC 5V DC 30mA; ● Standard HART Protocol Transmission; ● Transparent Data Transfer; ● Compatible with HART Protocol; Product Features ● Built-In Isolated DC 24V Output. Provide Power Supply and Communication to Two-Wire Channel Instrument, to Maximize the Reduction of Wiring. ● HART Signal Transfer with Isolation Transformer ● Built-In High Precision 250Ω Resistance. No need to add resistance if communication test. ● LED Panel to Monitor the Operation Status Main Parameters ● Physical Dimensions（L × W × H）: 71mm × 52 mm × 22 mm. ● Operation Ambient Temperature : -20℃～+80℃ ● Relative Humidity: 10% ～ 80% The operating software is very simple We have developed a very convenient operation software, under normal circumstances, you only need to operate according to the contents of the USB flash drive. / Note: under special circumstances, abnormal installation may be caused due to the setting of the instrument to "matrix mode". In this case, please contac us to help you deal with non quality problems. Please do not make bad comments. Thank you. Review: It works and it's cheap. - Used with Pactware and with DeviceCare SF100, works great, provided 24.4V to the device, as long as you have the DTMs it works great! Tested a few different ways, as a primary master and by itself no issues, as a secondary master connected with a PLC as the primary had a few drops while polling, which is no different from any other hart communicator out there that costs much much more!!! And I love being able to se the TX and RX blinks! Review: Very satisfied - I used the included modem driver and used Devcom2000 with no issues. Makes it quite a bit easier when setting these up on the bench. It has an option to power the transmitters and has the 250resistor built in. Software that comes with it is harder to use but since it works with devcom2000 still giving 5 stars. Definitely worth the money. ## Features - The HART smart converter, which is developed and manufactured according to industry standards, can communicate with any manufacturer's HART meter, such as Rosemont, EH, Siemens, Cologne, Yokogawa, Chuanyi, etc. At the same time, its shape is designed to be integrated and easy to install and carry. The standard USB interface and serial bus are used to supply power, which makes the user convenient and fast in use. - Intelligent converter is specially designed for industrial product integration. It adopts special design in temperature range, vibration, electromagnetic compatibility and interface diversity. Provide high quality assurance for your equipment. - supported operating systems: Windows. ● fully compatible with USB v2.0 and USB CDC v2.0 specifications. ● USB bus power supply (non isolated cable), DC 5V DC 30mA. ● fully transparent data conversion. ● compatible with any HART protocol. - About the installation software: With a USB flash drive, you can use the installation software developed by us or the original software that comes with the instrument. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07JMFMB7V | | Best Sellers Rank | #52,284 in Electronics ( See Top 100 in Electronics ) #57 in Computer Networking Modems | | Brand | GLTL | | Compatible Devices | HART devices | | Connectivity Technology | USB | | Customer Reviews | 4.2 out of 5 stars 49 Reviews | | Item Dimensions L x W x H | 2.76"L x 1.97"W x 0.79"H | | Item Weight | 8.48 ounces | | Manufacturer | GLTL | | Modem Type | Data Fax | | Number of Ports | 2 | | Product Dimensions | 2.76"L x 1.97"W x 0.79"H | | UPC | 729043784431 | ## Product Details - **Brand:** GLTL - **Compatible Devices:** HART devices - **Connectivity Technology:** USB - **Number of Ports:** 2 - **Product Dimensions:** 2.76"L x 1.97"W x 0.79"H ## Images ![integrative USB Hart Modem USB to Hart Protocol Modem Hart Transmitter HART Convertor (Suitable for All Devices Which Support Hart Protocol) - Image 1](https://m.media-amazon.com/images/I/61Iif-zJHcL.jpg) ## Questions & Answers **Q: I cannot get my included software to open. Program flashes and then closes again. Any ideas?** A: http://www.hart-rs232.com/downloads/02%3bSM100-C(III)%e6%a0%87%e5%87%86%e7%89%88/SM100C(III)%e9%85%8d%e7%bd%ae%e8%bd%af%e4%bb%b6%e5%8f%8a%e8%af%b4%e6%98%8e%e4%b9%a6.zip **Q: Is this DTM based?** A: Hello, Hart Modem can support DTM. You can use the software of the instrument or the software developed by us. Thank you. **Q: Hello, good morning. invoices with the purchase of the device? do you deliver the cd with the drivers?** A: Hello, contact us and we can provide electronically suitable invoices. The CD is shipped with the product. Thank you **Q: Is this device compatible with the vegapuls 66 radar level transmitter?** A: If the vegapuls 66 radar has an open HART protocol, there is no problem. ## Customer Reviews ### ⭐⭐⭐⭐⭐ It works and it's cheap. *by P***Y on November 7, 2025* Used with Pactware and with DeviceCare SF100, works great, provided 24.4V to the device, as long as you have the DTMs it works great! Tested a few different ways, as a primary master and by itself no issues, as a secondary master connected with a PLC as the primary had a few drops while polling, which is no different from any other hart communicator out there that costs much much more!!! And I love being able to se the TX and RX blinks! ### ⭐⭐⭐⭐⭐ Very satisfied *by B***I on October 7, 2025* I used the included modem driver and used Devcom2000 with no issues. Makes it quite a bit easier when setting these up on the bench. It has an option to power the transmitters and has the 250resistor built in. Software that comes with it is harder to use but since it works with devcom2000 still giving 5 stars. Definitely worth the money. ### ⭐⭐⭐⭐ Modem works *by R***I on May 11, 2024* The modem works. I used it with Pactware. Make sure you install the driver included. Need to set up Pactware for 3rd party communicator. Need to use correct com port, mine showed Yokogawa modem. Now the software that's included , I did not like it and could not get to work for what I needed. I'm sure it works ok for basic HART functions , but not detailed setup. That's why I gave it 4 vs 5 starts. ## Frequently Bought Together - integrative USB Hart Modem USB to Hart Protocol Modem Hart Transmitter HART Convertor (Suitable for All Devices Which Support Hart Protocol) - Handheld HART 475/375/275 Communicator with Crocodile Clip Cable - Field Calibrator for Pressure/Vortex Flow Transmitters, (ABB/EJA/Rosemount Compatible) --- ## 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/90109839-integrative-usb-hart-modem-usb-to-hart-protocol-modem-hart](https://www.desertcart.co.uk/products/90109839-integrative-usb-hart-modem-usb-to-hart-protocol-modem-hart) --- *Product available on Desertcart Great Britain* *Store origin: GB* *Last updated: 2026-04-22*