--- product_id: 104038509 title: "Marathon Replacement Remote Outdoor Sensor - Monitors Indoor & Outdoor Temperature in Celsius or Fahrenheit - Compatible with Model 27-FD Atomic Clock" brand: "marathon" price: "1522909₫" currency: VND in_stock: true reviews_count: 8 url: https://www.desertcart.vn/products/104038509-marathon-replacement-remote-outdoor-sensor-monitors-indoor-and-outdoor-temperature store_origin: VN region: Vietnam --- # Atomic clock sync, auto time set Battery-powered for flexible placement Dual indoor/outdoor temp monitoring Marathon Replacement Remote Outdoor Sensor - Monitors Indoor & Outdoor Temperature in Celsius or Fahrenheit - Compatible with Model 27-FD Atomic Clock **Brand:** marathon **Price:** 1522909₫ **Availability:** ✅ In Stock ## Summary > 🌟 Stay ahead of time and temperature—because precision is the new power move. ## Quick Answers - **What is this?** Marathon Replacement Remote Outdoor Sensor - Monitors Indoor & Outdoor Temperature in Celsius or Fahrenheit - Compatible with Model 27-FD Atomic Clock by marathon - **How much does it cost?** 1522909₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/104038509-marathon-replacement-remote-outdoor-sensor-monitors-indoor-and-outdoor-temperature) ## Best For - marathon enthusiasts ## Why This Product - Trusted marathon brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Multi-Format Display:** Switch easily between 12- or 24-hour time formats and view calendar and temperature at a glance. - • **Atomic Accuracy Timekeeping:** Syncs automatically with NIST’s Atomic Clock for flawless, self-adjusting time and date. - • **Flexible Placement Anywhere:** Wireless and battery-powered sensor lets you position it wherever you need, no wiring hassles. - • **Trusted Craftsmanship Legacy:** From a family-owned brand since 1941, combining Swiss precision with modern design for lasting quality. - • **Precision Temperature Tracking:** Monitor indoor & outdoor temps in °C or °F with a clear remote display—no need to check the main unit. ## Overview The Marathon Replacement Remote Outdoor Sensor is a wireless, battery-powered device that monitors indoor and outdoor temperatures in Celsius or Fahrenheit. Designed to pair seamlessly with the Model 27-FD Atomic Clock, it features a self-setting, self-adjusting clock synchronized with NIST’s Atomic Clock for unmatched accuracy. Its versatile display supports multiple time formats and calendar views, all backed by Marathon’s legacy of Swiss-engineered precision since 1941. ## Description Full description not available ## Features - REPLACEMENT REMOTE SENSOR - Our replacement wireless remote sensor monitors indoor & outdoor temperatures in Celsius or Fahrenheit. The sensor is equipped with a display so you can view the information without returning to the main unit. - SELF-SETTING, SELF-ADJUSTING CLOCK - This sensor works with our multi-functional atomic clock, which features self-setting, self-adjusting time based on the radio frequencies broadcast from NIST’s Atomic Clock (only available in N. America). - VERSATILE - The sensor and main clock are battery powered, so placement is flexible. On the clock, a calendar view, 12- or 24-Hour time formats & temperature are also displayed—all seen with one quick glance. - FAMILY OWNED & OPERATED - Marathon has been manufacturing precision timing instruments since 1941. Today, they continue their legacy, combining modern design sensibility with Swiss engineering & craftsmanship to ensure the highest quality products. ## Product Details - **Brand:** MARATHON - **Included Components:** Battery - **Outer Material:** Plastic or Glass - **Display Type:** Digital - **Product Care Instructions:** Wipe Clean - **Unit Count:** 1 Count - **Power Source:** Battery Powered - **Model Name:** 27-FD - **Number of Batteries:** 2 AA batteries required. (included) - **Upper Temperature Rating:** 50 Degrees Celsius ## Images ![Marathon Replacement Remote Outdoor Sensor - Monitors Indoor & Outdoor Temperature in Celsius or Fahrenheit - Compatible with Model 27-FD Atomic Clock - Image 1](https://m.media-amazon.com/images/I/51NczWjVYWL.jpg) ![Marathon Replacement Remote Outdoor Sensor - Monitors Indoor & Outdoor Temperature in Celsius or Fahrenheit - Compatible with Model 27-FD Atomic Clock - Image 2](https://m.media-amazon.com/images/I/71K5g1Wat-L.jpg) ![Marathon Replacement Remote Outdoor Sensor - Monitors Indoor & Outdoor Temperature in Celsius or Fahrenheit - Compatible with Model 27-FD Atomic Clock - Image 3](https://m.media-amazon.com/images/I/61OjRK1Zw3L.jpg) ![Marathon Replacement Remote Outdoor Sensor - Monitors Indoor & Outdoor Temperature in Celsius or Fahrenheit - Compatible with Model 27-FD Atomic Clock - Image 4](https://m.media-amazon.com/images/I/61bFEVURnhL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect replacement shipped quickly *by K***L on February 4, 2021* The remote sensor that came with the unit went crazy reporting negative temperatures when it was 50 degrees. This reasonably priced replacement arrived quickly and is working great. Very happy it was available when I needed it. ### ⭐ It did not link to any of my weather clocks *by A***R on March 17, 2024* Could not get it to link with any of my weather clocks ### ⭐⭐ My existing devices cannot pick up the temperature from this device *by J***L on July 21, 2025* This product looked promising to replace the existing Radio Shack 433 Mhz outside temperature transmitter. I put the batteries in it, and it started displaying the temperature. However neither of my two weather receivers (one made by Radio Shack and the other by Oregon Scientific) could pick up the signal. I tried resetting all devices repeatedly, but this device apparently transmits on a different channel that the other devices simply cannot pick up. Both existing 433 Mhz devices used to be able to capture the transmitted signal from the old device until it stopped working. Maybe it will work with other devices, but it was a disappointment for me. --- ## 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.vn/products/104038509-marathon-replacement-remote-outdoor-sensor-monitors-indoor-and-outdoor-temperature](https://www.desertcart.vn/products/104038509-marathon-replacement-remote-outdoor-sensor-monitors-indoor-and-outdoor-temperature) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-04-24*