The Kidde P4010LACS-W adds a built-in egress safety light to the hardwired Wire-Free RF platform, illuminating escape paths automatically when the alarm sounds at 85dB. A 10-year sealed lithium battery backup ensures continuous operation during power outages without battery replacements. Voice notifications accompany the alarm for end-of-life alerts and Hush activation. A bug screen protects the sensor. Ideal for hardwired hallway installations where emergency lighting is needed without running extra wiring.
What is the egress light on the P4010LACS-W?
The built-in egress light automatically illuminates when the alarm sounds, providing emergency lighting to guide occupants toward exits in dark hallways. It activates instantly with the alarm, powered by the main AC supply.
How is the P4010LACS-W different from the P4010ACS-W?
The P4010LACS-W is identical to the P4010ACS-W but includes a built-in egress safety light. Choose the P4010LACS-W for hallway installations where emergency lighting is desired alongside the smoke detection.
Does the P4010LACS-W require interconnect wiring between alarms?
No. The P4010LACS-W uses Wire-Free RF to communicate with other P4010-series alarms wirelessly. Only the primary AC power wiring needs to be connected at each alarm location — no three-wire interconnect cable needed.
What does the voice alert say on the P4010LACS-W?
Voice alerts accompany the 85dB alarm tone, announcing Replace alarm at end of battery life and Hush mode activated. These notifications help occupants understand alarm status quickly during stressful events.
How many alarms can be networked with the P4010LACS-W?
Up to 24 compatible Kidde Wire-Free P4010-series devices can be networked together in a supervised RF interconnect system, ensuring all alarms sound simultaneously when one detects smoke.
# Kidde Wire-Free Interconnected Hardwired Smoke Alarm with Egress Light **Model:** `P4010LACS-W` **Brand:** Kidde **Category:** Smoke Alarm Wire Free > The Kidde P4010LACS-W adds a built-in egress safety light to the hardwired Wire-Free RF platform, illuminating escape paths automatically when the alarm sounds at 85dB. A 10-year sealed lithium battery backup ensures continuous operation during power outages without battery replacements. Voice notifications accompany the alarm for end-of-life alerts and Hush activation. A bug screen protects the sensor. Ideal for hardwired hallway installations where emergency lighting is needed without running extra wiring. ## Specifications | Attribute | Value | |---|---| | Product Type | Smoke Alarm | | Alarm Type | smoke | | Sensor Smoke | photoelectric | | Power Source | hardwired-ac | | Voltage | 120 | | Battery Backup | Yes | | Battery Type | 10-year sealed lithium | | Battery Replaceable | No | | Battery Life Years | 10 | | Voice Alerts | Yes | | Smart Wifi | No | | App Connected | No | | Ring Ecosystem | No | | Interconnect | Yes | | Interconnect Type | wireless-rf | | Wire Free Rf | Yes | | Max Interconnect Devices | 24 | | Self Testing | No | | Hush Feature | Yes | | Smart Hush | No | | Strobe | No | | Egress Light | Yes | | Alarm Db | 85 | | Placement | hallway | | Ul Smoke | UL 217 | | Warranty Years | 10 | ## What's Included - alarm unit (battery pre-installed) - wiring harness - mounting hardware - quick install guide Source: https://www.jaspecs.com/kidde/smoke-alarm-wire-free/p4010lacs-w-kidde-wire-free-hardwired-smoke-alarm-egress-light/