--- product_id: 73098033 title: "Optex Td-20U Indoor/Outdoor Wireless Infrared Transmitter" brand: "optex" price: "48897 kr" currency: ISK in_stock: true reviews_count: 5 category: "Optex" url: https://www.desertcart.is/products/73098033-optex-td-20u-indoor-outdoor-wireless-infrared-transmitter store_origin: IS region: Iceland --- # Optex Td-20U Indoor/Outdoor Wireless Infrared Transmitter **Brand:** optex **Price:** 48897 kr **Availability:** ✅ In Stock ## Quick Answers - **What is this?** Optex Td-20U Indoor/Outdoor Wireless Infrared Transmitter by optex - **How much does it cost?** 48897 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/73098033-optex-td-20u-indoor-outdoor-wireless-infrared-transmitter) ## Best For - optex enthusiasts ## Why This Product - Trusted optex brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Free delivery and returns on all eligible orders. Shop Optex Td-20U Indoor/Outdoor Wireless Infrared Transmitter. Review: Exactly as described - This product works properly and is exactly as described Review: Could be a possible life saver - I use a number of these around the outside of my house to sense motion. They are powered by a 9 volt battery, which typically lasts from 9-12 months. I mount the TD-20U low to the ground on a plastic stake and use camouflage tape on them to hide them. I link them to an Optex RC-20U, and use it’s contact closure to feed an X10 Powerflash Interface, which is used in an ISY994i program. My floodlights and coach lights are on Insteon switches, and after dark when any motion is detected by an Optex RC-20U all these lights turn on. The sensors detect when deer, skunks or armadillos are in the yard. I also have one sensor pointed up the driveway, so if I return home after dark the whole exterior of my house is lit up. The Optex TD-20U also saved me from a possible home invasion. I have video surveillance cameras around the outside of my house, and they recorded the incident. At 1:55 AM, in July of 2019, a silver Impala drove into my driveway, and positioned the car next to my house. There were multiple men in this car, and their car windows were down. Within a few seconds of them passing the Optex sensor all my outside lights turned on. They were pretty well lit up. My cameras record video and audio. On the video one of the guys in the car said, “Hey, the lights came on”. The driver of that vehicle put it in reverse, and got out of there pretty quickly. Quite possibly the lights coming on saved the lives of my wife and I. I have found these to be a very good product. I expect to always use these to guard my property. ## Images ![Optex Td-20U Indoor/Outdoor Wireless Infrared Transmitter - Image 1](https://m.media-amazon.com/images/I/51mXCM5YCgL.jpg) ![Optex Td-20U Indoor/Outdoor Wireless Infrared Transmitter - Image 2](https://m.media-amazon.com/images/I/51fjUnss1-L.jpg) ![Optex Td-20U Indoor/Outdoor Wireless Infrared Transmitter - Image 3](https://m.media-amazon.com/images/I/71OS0qqGglL.jpg) ![Optex Td-20U Indoor/Outdoor Wireless Infrared Transmitter - Image 4](https://m.media-amazon.com/images/I/61wzrDNzWxL.jpg) ![Optex Td-20U Indoor/Outdoor Wireless Infrared Transmitter - Image 5](https://m.media-amazon.com/images/I/610lM0hRX7L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Exactly as described *by N***. on 1 February 2024* This product works properly and is exactly as described ### ⭐⭐⭐⭐⭐ Could be a possible life saver *by J***. on 19 August 2020* I use a number of these around the outside of my house to sense motion. They are powered by a 9 volt battery, which typically lasts from 9-12 months. I mount the TD-20U low to the ground on a plastic stake and use camouflage tape on them to hide them. I link them to an Optex RC-20U, and use it’s contact closure to feed an X10 Powerflash Interface, which is used in an ISY994i program. My floodlights and coach lights are on Insteon switches, and after dark when any motion is detected by an Optex RC-20U all these lights turn on. The sensors detect when deer, skunks or armadillos are in the yard. I also have one sensor pointed up the driveway, so if I return home after dark the whole exterior of my house is lit up. The Optex TD-20U also saved me from a possible home invasion. I have video surveillance cameras around the outside of my house, and they recorded the incident. At 1:55 AM, in July of 2019, a silver Impala drove into my driveway, and positioned the car next to my house. There were multiple men in this car, and their car windows were down. Within a few seconds of them passing the Optex sensor all my outside lights turned on. They were pretty well lit up. My cameras record video and audio. On the video one of the guys in the car said, “Hey, the lights came on”. The driver of that vehicle put it in reverse, and got out of there pretty quickly. Quite possibly the lights coming on saved the lives of my wife and I. I have found these to be a very good product. I expect to always use these to guard my property. ### ⭐⭐⭐⭐⭐ GOOD SENSOR. *by N***N on 18 July 2022* PERFECT FOR MY DRIVE-THRU RESTAURANT. DURABLE. THE FIRST ONE I BOUGHT LASTED 15 YEARS, I HAD TO REPLACE IT WITH ANOTHER SIMILAR ONE BECAUSE THE HINGE WAS BROKEN ON THE OLD ONE. RECOMMEND IT. --- ## 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.is/products/73098033-optex-td-20u-indoor-outdoor-wireless-infrared-transmitter](https://www.desertcart.is/products/73098033-optex-td-20u-indoor-outdoor-wireless-infrared-transmitter) --- *Product available on Desertcart Iceland* *Store origin: IS* *Last updated: 2026-10-26*