--- product_id: 43058119 title: "Sekonic Transmitter Module RT-EL/PX for L-858D-U Speedmaster Light Meter (401-626)" brand: "sekonic" price: "1098.92 DT" currency: TND in_stock: true reviews_count: 2 category: "Sekonic" url: https://www.desertcart.tn/products/43058119-sekonic-transmitter-module-rt-el-px-for-l-858d-u store_origin: TN region: Tunisia --- # Remote power control & flash triggering 20 Lunchroom channels + 4 Phot tix channels Lightweight 0.35 oz with Lithium Ion battery Sekonic Transmitter Module RT-EL/PX for L-858D-U Speedmaster Light Meter (401-626) **Brand:** sekonic **Price:** 1098.92 DT **Availability:** ✅ In Stock ## Summary > 📡 Trigger brilliance, control like a pro. ## Quick Answers - **What is this?** Sekonic Transmitter Module RT-EL/PX for L-858D-U Speedmaster Light Meter (401-626) by sekonic - **How much does it cost?** 1098.92 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/43058119-sekonic-transmitter-module-rt-el-px-for-l-858d-u) ## Best For - sekonic enthusiasts ## Why This Product - Trusted sekonic brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Pro-Grade Reliability:** Trusted by pros with a 5-star rating and ranked #243 in photographic light meter accessories. - • **Universal Compatibility:** Works flawlessly with L-858D-U Speedmaster and supports Stratum II protocol for advanced Phot tix receivers. - • **Dynamic Power Adjustment:** Trigger and fine-tune modeling lamp and flash power remotely to nail the perfect exposure every time. - • **Compact & Lightweight Design:** Weighing just 0.35 ounces, it integrates flawlessly without weighing down your gear. - • **Seamless Multi-Channel Control:** Effortlessly manage up to 20 Lunchroom and 4 Phot tix channels for ultimate lighting precision. ## Overview The Sekonic RT-EL/PX transmitter module enhances the L-858D-U Speedmaster light meter by enabling wireless triggering and power control of Lunchroom and Phot tix-enabled lighting systems. Supporting up to 20 Lunchroom channels and 4 Phot tix channels with group selection, it offers precise remote management of flash and modeling lamps. Lightweight and powered by a lithium-ion battery, this module is a must-have for photographers seeking seamless, professional-grade lighting control. ## Description Sonic Transmitter Module RT-EL/PX for L-858D-U Speed master light meter. Used to trigger Lunchroom(Sky port) and Phot tix (Strata) enabled lighting and receivers. When used with Lunchroom provides Triggering and controlling the power level of the light •Triggering and controlling the power level of modeling lamp with ON/OFF •For more information on Lunchroom, When used with Phot tix Selecting the groups and triggering a flash for measurement requires using a Phot tix Indre, Metros+ set for Stratum II reception or flash attached to Phot tix receiver with Stratum II protocol. •For more information about Phot tix and the Stratum II protocol, see the website of Phot tix Review: تاجر ممتاز Review: Thanks ## Features - RT-EL/PX for L-858D-U transmitter is compatible with Lunchroom - When working with Lunchroom Triggering and controlling the power level of the light - Radio Channel and groups that can be used with this transmitter module:Lunchroom Channels : 1 to 20 Group : G1 to G4 + ALLPhot tix Channels : 1 to 4Group : A to D ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B06XBC2W6T | | Batteries | 1 Lithium Ion batteries required. | | Best Sellers Rank | #243 in Photographic Light Meters | | Customer Reviews | 5.0 5.0 out of 5 stars (6) | | Date First Available | March 1, 2017 | | Item Weight | 0.352 ounces | | Item model number | 401-626 | | Language | English, English, English, English, English | | Manufacturer | MacGroup | | Product Dimensions | 2.2 x 3.07 x 1.02 inches | ## Product Details - **Brand:** Sekonic - **Global Trade Identification Number:** 04962294011888 - **Item Weight:** 0.02 Pounds - **Item dimensions L x W x H:** 2.2 x 3.07 x 1.02 inches - **Manufacturer:** MacGroup ## Images ![Sekonic Transmitter Module RT-EL/PX for L-858D-U Speedmaster Light Meter (401-626) - Image 1](https://m.media-amazon.com/images/I/717R-VQGu1L.jpg) ![Sekonic Transmitter Module RT-EL/PX for L-858D-U Speedmaster Light Meter (401-626) - Image 2](https://m.media-amazon.com/images/I/71MZ1J1QZhL.jpg) ![Sekonic Transmitter Module RT-EL/PX for L-858D-U Speedmaster Light Meter (401-626) - Image 3](https://m.media-amazon.com/images/I/81+DJJY4v4L.jpg) ![Sekonic Transmitter Module RT-EL/PX for L-858D-U Speedmaster Light Meter (401-626) - Image 4](https://m.media-amazon.com/images/I/81KiWvB7UyL.jpg) ![Sekonic Transmitter Module RT-EL/PX for L-858D-U Speedmaster Light Meter (401-626) - Image 5](https://m.media-amazon.com/images/I/81eCiiTmOsL.jpg) ## Questions & Answers **Q: Does this module fire elinchrom elc pro hd series? the standard module in my l-758dr does not... will this enable it?** A: It will, but only with the L-858 meter. **Q: Does it fire the Flashpoint/Godox system?** A: There is now a Godox/Flashpoint transmitter **Q: Which Phottix would it trigger?odden Strato?all ?!** A: This will fire the Strato, Strato II and the Ares II (channels 1-4). ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by K***I on December 13, 2025* تاجر ممتاز ### ⭐⭐⭐⭐⭐ Review *by K***D on September 17, 2019* Thanks ## Frequently Bought Together - Sekonic Transmitter Module RT-EL/PX for L-858D-U Speedmaster Light Meter (401-626) - Lightdow 12 x 12 Inch (30 x 30 cm) White Balance 18% Gray Reference Reflector Grey Card with Carry Bag [Folded Version] - Calibrite ColorChecker Passport Photo 2 (CCPP2) --- ## 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.tn/products/43058119-sekonic-transmitter-module-rt-el-px-for-l-858d-u](https://www.desertcart.tn/products/43058119-sekonic-transmitter-module-rt-el-px-for-l-858d-u) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-04-25*