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P4010ACS Hard-Wired Photoelectric Smoke Alarm (120 V) w/ Lithium Battery Backup
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21027537 has been discontinued
Discontinued July 18, 2025
This product was discontinued by the manufacturer.
MANUALS (2)
This item replaces: 21010407-A, P4010ACS
Suggested Alternative:
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Product Highlights
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40°F to 100°F
5.59" Diameter
1.91" Depth
10 Year Limited Warranty
120v
Description
–
Features
- Photoelectric Sensing Technology
- 10 Year Sealed Lithium Battery Backup
- Voice Messaging System
- Ambient Light Sensor
- Smart Hush Control
- Flashing LED Status Ring allows easy identification of current state of alarm
- Voice Notification: Unit verbally announces "Fire!" and other alerts such as "Replace Alarm," which helps the user better understand current status of the unit.
- Easy to Install: Backup battery automatically activates when the unit is attached to the mounting bracket
- Photoelectric Sensor: Smoke alarm contains advanced photoelectric sensor that may detect visible particles (associated with smoldering fires) sooner than ionization alarms.
- Ambient Light Sensing: Establishes Day/Night cycle and delays chirping during the night until the next Day cycle begins.
- Test / Hush Button: Tests alarm circuitry and activates Hush feature to temporarily silence nuisance alarms for up to 10 minutes. End of Unit Life chirps can also be silenced.
- End of Unit Life Warning: Alerts user the alarm is in need of replacement.
- 10 Year Limited Warranty
Specs
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| Product Type: | Smoke Detector |
|---|---|
| Temperature Range (F): | 40°F to 100°F |
| Diameter (Inches): | 5.59" |
| Depth (Inches): | 1.91" |
| Relative Humidity: | 0 to 95% RH |
| Warranty: | 10 Year Limited |
| Sensor Type: | Photoelectric |
| Voltage: | 120v |
| Battery Type: | Lithium-Ion |
Questions?
Speak with a real person who will go out of the way to help!
Call or text 888-757-4774
Monday – Thursday
8am–7:45pm
Friday
9am–7:45pm
Saturday – Sunday
9am–5:45pm
Product Reviews
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Showing 1-1 of 1 reviews
Alarms were easy to install.
I had bought adapters from another company to allow fast connection of Kidde alarm to the original alarms in the house, but they took up too much space in the conduit box, so just used the wiring that came with the Kidde alarm.
Bill
St. Louis
3 years ago
Verified Buyer
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