21033881

Introducing the Kidde 21033881 Hardwired Smoke Detectors with 10-Battery Backup Interconnectable Pack, designed to provide reliable and robust fire protection for your home. This six-piece pack of smoke detectors is interconnectable, ensuring that when one detector senses smoke, all the connected alarms will activate, providing an early warning and ensuring that no smoke goes unnoticed.

Each smoke detector in this pack is hardwired, which means they are directly connected to your home's electrical system for constant power. However, they also come with a 10-year long-lasting battery backup, ensuring that they will continue to function even during power outages or wiring issues. This battery backup is non-removable and sealed, ensuring the longevity and reliability of the battery.

These Kidde smoke detectors feature a sleek and modern design, with a test/reset button conveniently located on the front. They also have a LED indicator that displays the operational status, as well as an end-of-life indicator that lets you know when it's time to replace the unit.

The smoke detectors in this pack are also equipped with Kidde's advanced sensor technology, which can detect both ionization and photoelectric smoke particles. This dual-sensor technology ensures that these detectors can detect a wide range of fires, from fast-flaming fires that produce dense smoke quickly to smoldering fires that produce thin, invisible smoke over long periods.

The Kidde 21033881 Hardwired Smoke Detectors with 10-Battery Backup Interconnectable Pack are easy to install, with clear instructions and mounting hardware included in the box. They are also compatible with most home electrical systems, making them a versatile and practical choice for any home.

In summary, the Kidde 21033881 Hardwired Smoke Detectors with 10-Battery Backup Interconnectable Pack is a high-quality and reliable smoke detector system that offers interconnectable alarms for early warning, long-lasting battery backup, advanced sensor technology, and easy installation. With its modern design and user-friendly features, these smoke detectors are an excellent addition to any home's fire safety system.

Pros and Cons of Buying Kidde 21033881 Hardwired Smoke Detectors with 10-Battery Backup Interconnectable Pack

The Kidde 21033881 Hardwired Smoke Detectors with 10-Battery Backup Interconnectable Pack is a popular choice for homeowners seeking reliable and interconnected smoke detection systems. Let's explore the key advantages and disadvantages of this product:

1. Hardwired and battery backup: This smoke detector is both hardwired into your home's electrical system and comes with a 10-year battery backup, ensuring uninterrupted smoke detection and compliance with safety regulations.

2. Interconnectability: The interconnectable feature allows these smoke detectors to communicate with one another, activating all alarms in the event of smoke detection in any single unit.

3. Long battery life: Each smoke detector comes with a 10-year battery, reducing the need for frequent battery replacements and ensuring a long lifespan for the devices.

4. Sensitivity: Kidde smoke detectors are known for their high sensitivity, detecting smoke even in its earliest stages, providing ample warning time to evacuate your home.

5. Easy installation: The hardwired design makes installation relatively straightforward, while the interconnectable feature simplifies the process of connecting multiple devices.

1. Higher cost: Compared to battery-operated smoke detectors, hardwired smoke detectors with battery backups tend to be more expensive due to their additional features and components.

2. Professional installation: While the installation process is simpler than some other systems, it may still require professional assistance to ensure proper connection to your home's electrical system.

3. Power outages: During a power outage, the hardwired smoke detectors will rely on their battery backups. However, it's essential to note that these batteries may not last as long as the advertised 10-year lifespan if they are frequently activated by false alarms or other factors.

The Kidde 21033881 Hardwired Smoke Detectors with 10-Battery Backup Interconnectable Pack offers several advantages, including hardwired connectivity, battery backup, interconnectability, long battery life, and high sensitivity. However, the higher cost and potential need for professional installation are important considerations. Ultimately, this smoke detector system is an excellent investment for homeowners seeking reliable, interconnected smoke detection and compliance with safety regulations.

If you're looking for a reliable, interconnected smoke detection system, the Kidde 21033881 Hardwired Smoke Detectors with 10-Battery Backup Interconnectable Pack is a solid choice. While the higher cost may be a concern, the long-term benefits of this system, including uninterrupted smoke detection and compliance with safety regulations, make it a worthwhile investment for homeowners.

Details:

Hardwired with 10-year battery backup: operates on 120v ac with a built-in 10-year battery; helps provide continuous protection; saves up to $40 over the alarms life in battery replacements; limited warranty from first power-on. Reduced false alarms: uses enhanced sensing technology that helps distinguish between real smoke and everyday cooking or steam; reduce false alarms while maintaining quick, accurate detection when is present. Kidde smoke detector, hardwired with 10-year battery backup, interconnectable, led status lights, 85 db alarm, 5-inches, 3-pack: smoke detection: model 20SA10 features advanced sensing technology that detects smoke over 25% faster ; sounds a loud 85-decibel alarm red light for clear visual warnings; suitable homes. Interconnect capability: connects with other Kidde alarms so when one detects danger, all connected units sound together; helps ensure everyone in the home is alerted to potential hazards.

specifications mersmallets:

• brand: Kidde
• mpn: 21033881
• model: 20sa10
• type: Standing
• size: 3 Pack
• color: White
• material: Other
• connectivity: Wired
• power source: Battery Powered
• voltage: 120 V
• features: Standard
• insect repellent treated: No
• upc: 047871338818

payments mersmallet's:

• wallet: apple-pay
• other
• credit card: diners-club

shipping mersmallet's:

• class: expedited
• service: fedex 2day
• type: fixed
• transit: 3-4 days
• carrier: fedex

offer mersmallet's:

• sold #: 9
• availability: in stock
• prices: $14.99–$189.00
• item condition:
  • Open box
  • New
  • For parts or not working
  • Used
• options: ship-to-home
• in stock #: 5
• started: march 22, 2026
• best offers: true

general mersmallets:

• category: Home & Garden > Workshop Equipment > Hand Tools > Hammers Mallets

returns mersmallet's:

• policy: returns accepted
• time: 30 days
• paid by: seller
• method: money back

seller mersmallet's:

• # reviews: 3431
• city: phoenix, arizona
• rating: 99.0%

Related To:

• 21033886: DETECTOR BATTERY ALARM, Kidde