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The Kidde 21027904 Smoke Alarm is an AC/DC powered, ionization smoke alarm that operates on a 120V power source with sealed-in lithium battery backup. The i12010SCA contains a 10-year tamper proof battery that eliminates the need for battery replacement, and ends worry over unauthorized battery removal. The alarm provides continuous protection from smoke and fire, even during power outages. At the end of alarm life, the unit will chirp, indicating the alarm is in need of replacement.
Kidde hardwired Smoke Alarm features 10 year sealed battery that never needs changing
Ionization technology
Hush/test button
Will interconnect with up to 24 other devices (18 of which can be initiating)
End of life chirp from time of activation
Tamper Resist feature – Alarm will lock to mounting bracket to deter theft or tampering.
| Part Number | 21027904 |
|---|---|
| Product Use(s) | Carbon Monoxide Detector, Smoke Detector |
| Alarm Type | Beep, Talking |
| Sensor Type(s) | Microprocessor Based |
| Power Source | Hardwired |
| Battery Technology | Lithium Polymer |
| Battery Type/Battery Size | Battery Pack |
| Accessories List | Backup Battery, Batteries Included, Mounting Hardware |
| Primary Colour | White |
| Consumer Pack Size | 1 |
| Certifications | UL Listed |
|---|---|
| Smart System Compatibility | No Smart Technology |
| Audible Alarm Strength (db) | 85 dB |
| Minimum Operating Temperature (°C) | 4.40 °C |
| Maximum Operating Temperature (°C) | 37.80 °C |
| Range (ft) | 0.00 ft |
| Cord Length (ft) | 0.00 ft |
| Advanced Features | Continuous Duty, Low Battery Indicator, Mute Button, Tamper-Resistant, Testing Button |
| Shelf Life (year) | 10 yr |
| Assembled Length (in) | 5.59 in |
| Assembled Width (in) | 1.93 in |
| Assembled Height (in) | 5.59 in |
| Accessories List | Backup Battery, Batteries Included, Mounting Hardware |
| Advanced Features | Continuous Duty, Low Battery Indicator, Mute Button, Tamper-Resistant, Testing Button |
| Alarm Type | Beep, Talking |
| Assembled Height (cm) | 14.20 cm |
| Assembled Height (ft) | 0.47 ft |
| Assembled Height (in) | 5.59 in |
| Assembled Length (cm) | 14.20 cm |
| Assembled Length (ft) | 0.47 ft |
| Assembled Length (in) | 5.59 in |
| Assembled Width (cm) | 4.90 cm |
| Assembled Width (in) | 1.93 in |
| Assembled Width (mm) | 49.00 mm |
| Audible Alarm Strength (db) | 85 dB |
| Battery Type/Battery Size | Battery Pack |
| Certifications | UL Listed |
| Consumer Pack Size | 1 |
| Cord Length (ft) | 0.00 ft |
| Cord Length (m) | 0.00 m |
| Maximum Operating Temperature (°C) | 37.80 °C |
| Maximum Operating Temperature (°F) | 100.04 °F |
| Minimum Operating Temperature (°C) | 4.40 °C |
| Minimum Operating Temperature (°F) | 39.92 °F |
| Number of Pieces | 1 |
| Package Depth (cm) | 6.50 cm |
| Package Depth (in) | 2.56 in |
| Package Height (cm) | 15.00 cm |
| Package Height (in) | 5.91 in |
| Package Weight (kg) | 0.03 kg |
| Package Weight (lb) | 0.06 lb |
| Package Width (cm) | 15.00 cm |
| Package Width (in) | 5.91 in |
| Power Source | Hardwired |
| Primary Colour | White |
| Product Use(s) | Carbon Monoxide Detector, Smoke Detector |
| Range (ft) | 0.00 ft |
| Range (m) | 0.00 m |
| Sensor Type(s) | Microprocessor Based |
| Shelf Life (year) | 10 yr |
| Smart System Compatibility | No Smart Technology |

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