AC Hardwired Photoelectric Smoke Alarm with Voice & 10-Year Sealed Battery Backup – P4010ACS (Part No. 21027537)
The P4010ACS AC Hardwired Photoelectric Smoke Alarm is an advanced life safety device designed to deliver reliable fire detection with enhanced user-friendly features. Powered by a 120V AC/DC hardwired connection and equipped with a 10-year sealed lithium battery backup, this alarm ensures uninterrupted protection even during power outages.
Built with high-performance photoelectric sensing technology, the P4010ACS is especially effective at detecting slow, smoldering fires that produce visible smoke particles, helping provide early warning in critical situations. Its intelligent design reduces nuisance alarms while maintaining high sensitivity to real fire conditions.
A key feature of this model is its integrated voice messaging system, which works alongside an 85dB audible alarm to reduce confusion during emergencies. The voice alerts provide clear instructions such as “Replace alarm” at end-of-life and “Hush mode activated” when a nuisance alarm is temporarily silenced.
The P4010 series includes a tamper-proof 10-year sealed battery, eliminating the need for battery replacements and preventing unauthorized removal. It also features an ambient light sensor, which detects day and night cycles to minimize low-battery chirping during nighttime hours.
For added convenience, the alarm includes Smart Hush® control, allowing users to temporarily silence false or nuisance alarms safely. A flashing LED status ring provides clear visual indication of the alarm’s operating condition at all times.
Designed for modern residential safety systems, the P4010ACS is a durable, low-maintenance, and highly reliable smoke detection solution backed by a long-term 10-year design life.
Key Features
- 120V AC/DC hardwired photoelectric smoke alarm
- 10-year sealed lithium battery backup (tamper-proof)
- Advanced photoelectric smoke sensing technology
- Voice messaging system with clear alerts
- 85dB loud audible alarm
- Smart Hush® control for nuisance alarm silence
- Ambient light sensor for day/night detection
- Flashing LED status ring for alarm status indication
- End-of-life voice notification (“Replace alarm”)
- Reduced nuisance alarms through intelligent design
- Maintenance-free 10-year operation
- Part Number: 21027537
Specifications
- Model: P4010ACS
- Part Number: 21027537
- Power Supply: 120V AC/DC Hardwired
- Backup Battery: 10-Year Sealed Lithium Battery
- Sensor Type: Photoelectric
- Detection Type: Smoke (smoldering fires)
- Alarm Output: 85dB + Voice Messaging
- Smart Features: Ambient Light Sensor, Smart Hush®
- Status Indicator: LED Flashing Status Ring
- Installation Type: Hardwired (wire-in)
- Battery Life: 10 Years
- Warranty/Design Life: 10-Year System Life
