--- product_id: 621672304 title: "Kidde Smoke Detector, AA Battery Powered Smoke Alarm, LED Warning Light Indicators" brand: "kidde" price: "R$509" currency: BRL in_stock: true reviews_count: 5 category: "Kidde" url: https://www.desertcart.com.br/products/621672304-kidde-smoke-detector-aa-battery-powered-smoke-alarm-led-warning store_origin: BR region: Brazil --- # 3-color LED status indicators 85dB loud alarm 2 AA batteries included Kidde Smoke Detector, AA Battery Powered Smoke Alarm, LED Warning Light Indicators **Brand:** kidde **Price:** R$509 **Availability:** ✅ In Stock ## Summary > 🔥 Stay ahead of danger with Kidde’s smart, silent guardian! 🚨 ## Quick Answers - **What is this?** Kidde Smoke Detector, AA Battery Powered Smoke Alarm, LED Warning Light Indicators by kidde - **How much does it cost?** R$509 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/621672304-kidde-smoke-detector-aa-battery-powered-smoke-alarm-led-warning) ## Best For - kidde enthusiasts ## Why This Product - Trusted kidde brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Always On Guard:** Self-testing internal components with weekly manual test reminders guarantee reliable protection 24/7. - • **Loud & Clear Alerts:** 85-decibel alarm with synchronized red LED flashes ensures you never miss a warning. - • **Hassle-Free Installation:** Battery-powered with included AA batteries and twist-and-click mounting bracket for effortless setup—no wiring needed. - • **Visual Status at a Glance:** Tri-color LED indicators provide instant feedback on normal operation, errors, or smoke detection. - • **Smart False Alarm Reduction:** Advanced sensing technology minimizes nuisance alarms from cooking, keeping your home calm and safe. ## Overview The Kidde 20SDR Smoke Detector combines cutting-edge photoelectric sensing with a powerful 85dB alarm and intuitive 3-color LED indicators. Designed for easy, wire-free installation using included AA batteries, it reduces false alarms and meets the latest UL 217 9th Edition and FCC safety standards. With self-testing features and end-of-life alerts, it offers reliable, hassle-free fire safety for every modern home. ## Description Experience the next level of fire safety with the Kidde Smoke Detector, AA Battery Powered, LED Warning Light Indicators, model 20SDR. This smoke detector has enhanced sensing technology that reduces false alarms often caused by cooking and sends fast alerts that help give your family more time to get out safely. This alarm offers a modern 5-inch design ideal for all living spaces such as living rooms, hallways, kitchens, & bedrooms. Comprehensively tested and designed to the latest UL standard for safety and reliability, the 5-inch smoke alarm is powered by 2 replaceable AA alkaline batteries (included) for continual detection even during outages. Batteries should be replaced every 6 months or when the alarm sounds a low battery chirp. In addition, it’s self-testing and easy to install with the included twist-and-click mounting bracket. This Kidde smoke alarm is equipped with end-of-life notifications that will beep to remind you it’s time to replace it at the of its 10-year lifespan. Meets requirements of 9th Edition UL 217 and FCC. Does not meet requirements for CSFM. Review: Batteries included - Really easy to install and everything you need is included. It came with the batteries, which was probably the best part—no running around looking for the right ones. All the mounting hardware was there, installation only took a few minutes, and it worked perfectly right out of the box. Great value and definitely recommend it. Review: Works great so far! - So far so good! These were super easy to install and they are LOUD. I couldn't believe the sound they emit. I hope I don't accidentally set them off while cooking. ## Features - DETECTS SMOKE: Sounds a loud 85-decibel alarm when smoke is detected - 3 long beeps with red LED light flashing in time, repeating. - ENHANCED SENSING TECHNOLOGY: Reduces false alarms often caused by cooking. Comprehensively tested to meet the latest UL standards, meets UL 217 9th Edition & FCC standards. - NO WIRING NEEDED: Operates on 2-AA alkaline batteries (included) providing easy installation, simply mount the bracket onto the ceiling and twist & click the 5-inch smoke alarm into the bracket. - SELF-TESTING ALARM: Internal components ensure alarm is always operating as expected. Not a substitute for a manual push test, perform a button test once per week to verify alarm operation. - 3 LED NOTIFICATIONS: LED lights indicate alarm status, green = normal operation, amber = operating error, red = smoke detected. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CX6RMV4B | | Alarm | Smoke Detector | | Best Sellers Rank | #185,348 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #190 in Smoke Alarms | | Brand | Kidde | | Built-In Media | 2 AA Batteries, Alarm, Mounting Hardware, User Guide | | Color | White | | Colour | White | | Customer Reviews | 4.4 out of 5 stars 663 Reviews | | Enclosure Material | Plastic | | Global Trade Identification Number | 00047871328161 | | Item Dimensions D x W x H | 4.8D x 12.7W x 12.7H centimeters | | Item Type Name | Smoke Alarm | | Item Weight | 0.57 Pounds | | Item weight | 0.57 Pounds | | Manufacturer | Kidde | | Mfr Part Number | 21032816 | | Model Number | 20SDR | | Number of Items | 1 | | Operating Humidity | Up to 95% relative humidity (RH), non-condensing | | Power Source | Battery Powered | | Power source | Battery Powered | | Product Style | 9th Edition Alarm | | Product dimensions | 4.8D x 12.7W x 12.7H centimeters | | Sensor Type | Photoelectric | | Style | 9th Edition Alarm | | UPC | 047871328161 | | Unit Count | 1 Count | | Upper Temperature Rating | 100 Degrees Fahrenheit | ## Product Details - **Brand:** Kidde - **Colour:** White - **Power source:** Battery Powered - **Product dimensions:** 4.8D x 12.7W x 12.7H centimeters - **Style:** 9th Edition Alarm ## Images ![Kidde Smoke Detector, AA Battery Powered Smoke Alarm, LED Warning Light Indicators - Image 1](https://m.media-amazon.com/images/I/71-h9Y+W5OL.jpg) ![Kidde Smoke Detector, AA Battery Powered Smoke Alarm, LED Warning Light Indicators - Image 2](https://m.media-amazon.com/images/I/81oRCJSSwkL.jpg) ![Kidde Smoke Detector, AA Battery Powered Smoke Alarm, LED Warning Light Indicators - Image 3](https://m.media-amazon.com/images/I/71gzVBYm9LL.jpg) ![Kidde Smoke Detector, AA Battery Powered Smoke Alarm, LED Warning Light Indicators - Image 4](https://m.media-amazon.com/images/I/71vhfC+3-vL.jpg) ![Kidde Smoke Detector, AA Battery Powered Smoke Alarm, LED Warning Light Indicators - Image 5](https://m.media-amazon.com/images/I/91YTMP0ej9L.jpg) ## Questions & Answers **Q: What does the 20SDR smoke alarm detect?** A: The 20SDR detects smoke. It is designed for residential fire safety use in the home. **Q: How is the 20SDR powered?** A: The 20SDR uses 2 AA replaceable batteries. Battery power helps support alarm operation during short outages. **Q: How do I clean the 20SDR to help reduce nuisance alarms?** A: Clean the 20SDR at least once a year. Use compressed air or a vacuum hose around openings and a dry cloth outside. Avoid water, cleaners, aerosols and paint. **Q: Can I silence a nuisance alarm on the 20SDR?** A: Yes. Use HUSH only when you know there is no emergency and want to temporarily silence a nuisance smoke alarm. **Q: When should I replace the 20SDR?** A: Replace the 20SDR after 10 years or when end-of-life alerts begin. Follow the user guide for replacement guidance. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Batteries included *by S***. on 23 August 2026* Really easy to install and everything you need is included. It came with the batteries, which was probably the best part—no running around looking for the right ones. All the mounting hardware was there, installation only took a few minutes, and it worked perfectly right out of the box. Great value and definitely recommend it. ### ⭐⭐⭐⭐⭐ Works great so far! *by N***E on 31 August 2026* So far so good! These were super easy to install and they are LOUD. I couldn't believe the sound they emit. I hope I don't accidentally set them off while cooking. ### ⭐⭐⭐⭐ Green light attracts insects *by M***Y on 21 July 2025* We recently replaced all our old Kidde smoke detectors with these. Then we started getting false alarms in the middle of the night. It took three separate nights before I figured out that it was the green light that was attracting bugs. One time there was a circle of tiny black bugs surrounding the alarm-- they were so tiny they had come through the screen in the window. I fixed the problem by putting a square of electrical tape over all the lights, and so far it hasn't happened again. ## Frequently Bought Together - Kidde Smoke Detector, AA Battery Powered, LED Warning Light Indicators - Kidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test-Hush Button - Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable --- ## 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.com.br/products/621672304-kidde-smoke-detector-aa-battery-powered-smoke-alarm-led-warning](https://www.desertcart.com.br/products/621672304-kidde-smoke-detector-aa-battery-powered-smoke-alarm-led-warning) --- *Product available on Desertcart Brazil* *Store origin: BR* *Last updated: 2026-09-09*