--- product_id: 1774296 title: "Hardwire Smoke Detector with 9V Battery Backup and Front Load Battery Door | Model I4618AC" brand: "kidde" price: "€ 104.32" currency: EUR in_stock: true reviews_count: 11 url: https://www.desertcart.com.cy/products/1774296-hardwire-smoke-detector-with-9v-battery-backup-and-front-load store_origin: CY region: Cyprus --- # Front-load battery door for effortless replacement 9V battery backup for power outage safety 360° mounting bracket for versatile installation Hardwire Smoke Detector with 9V Battery Backup and Front Load Battery Door | Model I4618AC **Brand:** kidde **Price:** € 104.32 **Availability:** ✅ In Stock ## Summary > 🔥 Stay ahead of fire risks with Kidde’s smart, seamless safety solution! 🔥 ## Quick Answers - **What is this?** Hardwire Smoke Detector with 9V Battery Backup and Front Load Battery Door | Model I4618AC by kidde - **How much does it cost?** € 104.32 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/1774296-hardwire-smoke-detector-with-9v-battery-backup-and-front-load) ## 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 - • **Custom Fit Anywhere:** 360° mounting bracket ensures perfect placement from any angle in your home. - • **Smart Silence Control:** Hush button silences false alarms instantly—no more burnt-dinner panic. - • **Effortless Maintenance:** Front-load battery compartment lets you swap batteries without uninstalling. - • **Uninterrupted Protection:** Stay safe even during power outages with reliable 9V battery backup. - • **Interconnected Safety Network:** Link up to 24 Kidde devices for whole-home early fire detection. ## Overview The Kidde i4618AC is a UL-listed hardwired ionization smoke detector featuring a 9V battery backup to maintain protection during outages. Its innovative front-load battery door simplifies maintenance without removing the unit. Designed for flexible installation with a 360° mounting bracket, it includes a hush button to silence nuisance alarms and can interconnect with up to 24 Kidde devices for comprehensive home fire safety. Backed by a 5-year limited warranty, it’s a trusted choice for proactive, professional-grade fire detection. ## Description Product Description The Kidde i4618 is an AC/DC powered, ionization smoke alarm that operates on a 120V power source with 9V battery backup. This alarm uses ionization sensing technology. Ionization sensing alarms may detect invisible fire particles (associated with flaming fires) sooner than photoelectric alarms. Photoelectric sensing alarms may detect visible particles (associated with smoldering fires) sooner than ionization alarms. The front-loading battery door allows user to change the battery without removing the alarm from the mounting bracket making battery replacement easy and convenient. This smoke alarm is available in a 6-piece cut case with tray for easy display as well as a 6-piece bulk pack for contractors and property owners. This unit is a UL Listed product with a 5-year limited warranty. Kidde strongly recommends that both ionization and photoelectric smoke alarms be installed to help insure maximum detection of the various types of fire that can occur within the home. desertcart.com The Firex i4618 Hardwire Smoke Alarm by Kidde is an ionization smoke alarm that operates on a 120V power source with 9V battery backup. The Firex i4618 smoke alarm offers many benefits for installers and homeowners, such as its easy-access slide load front battery door. This alarm is powered by your home’s electricity and will interconnect with other smoke alarms in your home. Experts recommend interconnected alarms, because when one sounds, they all sound, providing an early warning against fire by dramatically increasing your ability to hear an alarm anywhere in your home, regardless of where the fire starts. This alarm uses ionization sensing technology. Ionization sensing alarms may detect invisible fire particles (associated with flaming fires) sooner than photoelectric alarms. Photoelectric sensing alarms may detect visible particles (associated with smoldering fires) sooner than ionization alarms. Kidde strongly recommends that both ionization and photoelectric smoke alarms be installed to help insure maximum detection of the various types of fire that can occur within the home. Interconnectable for Improved Safety Fire and consumer experts recommend interconnected alarms for added protection. According to the National Fire Protection Association (NFPA), most Americans feel they are more at risk of being a victim of a tornado than of a house fire. Actually the opposite is true. Fires are more common than any other disaster that strikes a family at home, and can become deadly in minutes. You have on average less than three minutes from the time you hear a smoke alarm to escape a fire. The sooner you hear an alarm, the sooner you can get out safely. Smoke alarms that link together so that when one goes off, they all go off, are called interconnected alarms. These alarms provide more warnings in more places, giving your family more time to escape a house fire. Houses built after 1993 are required by building codes to have interconnected alarms that are wired into their electrical system. Interconnects with Other Devices Interconnects with all Kidde, Firex, Fyrnetics, Lifesaver and Nighthawk alarms, strobe lights, and relay modules with interconnect functionality. Trademarked Hush Feature for Convenience By pressing the Hush button, you can easily and safely silence nuisance alarms caused by non-emergency situations, such as overcooked dinners. This alarm's Smart Hush feature has the capability of temporarily desensitizing the alarm circuit for up to 8 minutes. This feature is to be used only when a known alarm condition, such as smoke from cooking, activates the alarm. The smoke alarm is desensitized by pushing the Test/Hush button on the smoke alarm cover. If the smoke is not too dense, the alarm will silence immediately. The red LED will illuminate for 1.5 seconds every 8 seconds while in hush. This indicates that the alarm is in a temporarily desensitized condition. The smoke alarm will automatically reset after approximately 8 minutes and sound the alarm if particles of combustion are still present. Smart Hush can be used repeatedly until the air has been cleared of the condition causing the alarm. Pushing the Test/Hush button on the alarm will end the hush period. Reliable 9-Volt Battery Backup, Indicator LED, and Test Feature Because a smoke alarm only helps protect you if it's working, this unit features a red LED that flashes every 30 to 40 seconds to indicate that it is operating correctly. For additional peace of mind, the alarm also contains a test/reset button that enables you to periodically test its circuitry and horn. The alarm’s standard 9-volt battery provides continuous protection against smoke and fire hazards, even during power outages. The unit offers a low battery warning that issues a brief chirp every 30 to 40 seconds for at least seven days before losing power, letting you know that it's time to change the battery. The unit measures just 5.6 inches in diameter and 1.8 inches deep, and it features a neutral, white finish. It includes tamper resist features to deter vandalism or theft. This alarm is UL listed, so you can be confident of its quality, and it is backed by a 5-year limited warranty. About Kidde: A UTC Fire & Security Brand Renowned for global leadership in fire detection and suppression, Kidde provides solutions ranging from portable fire extinguishers to advanced industrial controls such as flame detection and explosion suppression systems. Kidde is a UTC Fire & Security brand, with a history that’s rich with innovations, from the patent of the Chubb Detector Lock in 1818 to the development of the world's first wireless networked smoke detectors in 2004. What's in the Box One i4618 ionization smoke alarm with mounting bracket and mounting hardware, one 9 volt battery, a 5-year limited warranty and a bilingual user's manual. ## Features - Front Load Battery Compartment for easy battery replacement - Hush alarm control button silences nuisance alarms - 9-Volt battery backup provides protection during power outages - Pre-stripped wiring harness with easy-off caps ensures quick installation - 360° mounting bracket allows mounting from any angle ## Technical Specifications | Specification | Value | |---------------|-------| | Alarm | Audible | | Asin | B001XQ5VHW | | Best Sellers Rank | #58,229 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #90 in Smoke Detectors & Fire Alarms | | Brand | Kidde | | Built In Media | i4618 smoke alarm, mounting bracket, user manual, wiring harness | | Color | White | | Compatible Devices | Up to 24 Kidde devices | | Customer Reviews | 4.5 4.5 out of 5 stars (2,330) 4.5 out of 5 stars | | Global Trade Identification Number | 00047871075812 | | Item Dimensions D X W X H | 2"D x 6"W x 6"H | | Item Type Name | Kidde Hardwire Smoke Detector with 9V Battery Backup and Front Load Battery Door | Model i4618 | | Item Weight | 9.6 ounces | | Manufacturer | Kidde Safety | | Manufacturer Warranty Description | 5-year limited | | Mfr Part Number | 21007581 | | Model Number | I4618AC | | Number Of Items | 1 | | Power Source | AC/DC | | Product Style | Hardwired Smoke Detector | | Sensor Type | Ionization | | Unit Count | 1 Count | | Upc | 047871075812 696505457397 | | Upper Temperature Rating | 100 °F | ## Product Details - **Alarm:** Audible - **Brand:** Kidde - **Color:** White - **Compatible Devices:** Up to 24 Kidde devices - **Item Weight:** 9.6 ounces - **Power Source:** AC/DC - **Product Dimensions:** 2"D x 6"W x 6"H - **Sensor Type:** Ionization - **Style:** Hardwired Smoke Detector - **Upper Temperature Rating:** 100 °F ## Images ![Hardwire Smoke Detector with 9V Battery Backup and Front Load Battery Door | Model I4618AC - Image 1](https://m.media-amazon.com/images/I/61NhWaKpE8L.jpg) ## Questions & Answers **Q: false alarm** A: Same. We had these for about 5 years and they worked fine, in the interconnected system, then we started getting false alarms where all the detectors would go off and start blaring and beeping...ALWAYS IN THE MIDDLE OF THE NIGHT. They pretty much go off once or twice a night tho and we're through with these. I don't know why they only go off when you're sleeping, but we've had it. **Q: Does it have a visible low battery indicator in addition to the chirping? The instruction manual does not indicate this feature.** A: According to the manual, you have to stare at the green light, which is on solidly, and watch for a red flash, and count the seconds between. About 30 or so seconds, the battery is okay. About half of that, and it is not. Keep reading- it doesn't work the way the manual says!!!! I have only caught one low battery this way. I have never had them chirp, due to a low battery- they have consistently set off all of the alarms in the house, full volume and noise, for several seconds- VERY disconcerting, especially to the kids, and to me, in so far as they automatically assume that it is a battery issue, versus leaving the house. To be honest, so do I, after having been awoken several times in the middle of the night, due to this incredible poor design, (or flawed construction- the instructions don't say that this is how they are supposed to work.) In one instance, I had checked for the red flashing light timing, for indication of a low battery, about 4 days before the stupid thing went off again. Maybe it is just me, but I have neither the time, nor patience, to stare at each of these things every day or two, for a minute apiece, in hoping to catch a low battery before they go off. If I had the option (I don't own the house,) I would gladly buy something else, and would have replaced them all, at my own expense, long ago. **Q: Does it come with battery** A: Yes, it comes with battery **Q: If chirping continues after replacing battery and resetting, what do I do?** A: If the unit chirps at seemingly random times or at random intervals after replacing the battery, check for the following conditions:1) The battery may be loose, or improperly installed.The smoke alarm cover may be dirty.3) Reset the alarm.4) An electrical condition may be causing the power to the unit to be interrupted. If the AC power to the unit is interrupted, the unit will chirp when the power is restored. This could be caused by power surges.5) Replace the alarm.Full instructionshttp://www.firexsafety.com/homedir/en/productsservices/firex/onlineservices/faq/frequently+asked+questions.htm ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fantastic Quality Hardwired Smoke Detector! *by on Reviewed in the United States August 17, 2023* I am thoroughly impressed with the Kidde I4618AC Alarm Hardwire Smoke Detector. Its reliable performance and 9V backup give me peace of mind, ensuring my family's safety even during power outages. Installation was a breeze thanks to clear instructions, and the sleek design seamlessly blends into our home decor. The loud alarm is impossible to miss, effectively alerting us to any potential dangers. This smoke detector's durability and longevity make it a must-have for every household. Rest easy knowing that the Kidde I4618AC has your back in safeguarding your loved ones and property. ### ⭐⭐⭐⭐⭐ Perfect replacement for Firex--and not too hard to install *by on Reviewed in the United States May 25, 2013* I bought these to replace my old Firex alarms that were about 12 years old. I was encouraged by the review from the man who said he wasn't handy but found the rewiring to be straightforeward. So I bought of these and have taken them out a number of times but am just flummoxed. I don't see any pre-stripped wires, just the three prongs sticking out from the back. Are there any instructions? I can't find them on the website and of course the help line is open only during business hours, not during the evenings or weekends when I try to install these.Currently, because I did find the breakers that control the alarms and have that turned off, we are without any smoke alarm protection. I bet this is some small, obvious thing, but I can't figure out where to get to these wires in order to rewire the new alarms. Any help will be deeply appreciated.UPDATE:Finally, I hired an electrician to install the alarms. Once I saw how he did the first one, I realized I could have installed them all very easily. The info I was missing was that the connectors for the old Firex had to be removed first--as you do that you will see where each of the the new wires needs to go. A ten minute operation.You do need to change out the holder, the piece that attaches to the ceiling to which you screw in the alarm box. But that, too, swaps out without a problem.The best part of these alarms is that you can change the batteries from the front of the box. In other words, you don't have to remove the alarm from the ceiling to get at the battery compartment in the back. The battery compartment is behind a sliding door on the front of the alarm. ### ⭐⭐⭐⭐⭐ Who knew smoke detectors had an expiration date? *by on Reviewed in the United States March 28, 2025* As I changed the batteries in my detectors last Daylight Savings, I noticed a sticker on my old 1275 models that stated a 10 year life span from the date of manufacture. DOM showed 2002 and an expiration date of 2012. Ooops. Obviously you can't get this dinosaur anymore so I looked for compatible alarms that had the same plug pattern (triangular) as my hardwiring. The Kidde website was very helpful finding a replacement. I only had to change the mounting frame. Quick and easy. I love that the battery backup is on the facing surface. Great product and the perfect replacement.No more dismounting and unplugging. Stay safe people. Check your expiration dates, change your batteries, clean out the sensors with canned air and test them once a month. ## Frequently Bought Together - Kidde Hardwire Smoke Detector with 9V Battery Backup and Front Load Battery Door | Model I4618AC - Kidde i4618AC Battery Powered Hardwire Smoke Alarm, 4 Pack --- ## 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.cy/products/1774296-hardwire-smoke-detector-with-9v-battery-backup-and-front-load](https://www.desertcart.com.cy/products/1774296-hardwire-smoke-detector-with-9v-battery-backup-and-front-load) --- *Product available on Desertcart Cyprus* *Store origin: CY* *Last updated: 2026-08-15*