The Kidde P4010ACSCO-W is a hardwired AC/DC combination smoke and CO alarm with 10-year sealed battery backup and supervised wire-free interconnect capability. When one alarm sounds, all connected alarms sound — via wireless RF, without additional hardwire runs to non-wired locations. Voice announcements accompany the 85 dB alarm tone. Additional verbal messages include 'Replace alarm' at end-of-life and 'Hush mode activated'. A three-color LED status ring provides easy state identification. Bug screen protects sensor from insects. This model is replaced by the 30CUA10-V.
What is wire-free interconnect on a hardwired alarm?
Wire-free interconnect on the P4010ACSCO-W means the alarm can connect to battery-powered wire-free alarms in other rooms via RF — without running hardwire to those locations. The alarm itself is hardwired to AC power, but its interconnect uses wireless RF to communicate with other Kidde wire-free compatible alarms.
What replaces the P4010ACSCO-W?
Kidde recommends upgrading to the 30CUA10-V, the current DETECT hardwired combo alarm with 10-year battery and voice alerts.
# Kidde Wire-Free Interconnected Hardwired Combination Smoke and CO Alarm with 10-Year Battery **Model:** `P4010ACSCO-W` **Brand:** Kidde **Category:** Combo Alarm Hardwired > The Kidde P4010ACSCO-W is a hardwired AC/DC combination smoke and CO alarm with 10-year sealed battery backup and supervised wire-free interconnect capability. When one alarm sounds, all connected alarms sound — via wireless RF, without additional hardwire runs to non-wired locations. Voice announcements accompany the 85 dB alarm tone. Additional verbal messages include 'Replace alarm' at end-of-life and 'Hush mode activated'. A three-color LED status ring provides easy state identification. Bug screen protects sensor from insects. This model is replaced by the 30CUA10-V. ## Specifications | Attribute | Value | |---|---| | Product Type | Combination Smoke + CO Alarm | | Alarm Type | combo | | Sensor Smoke | photoelectric | | Sensor Co | electrochemical | | Power Source | hardwired-ac | | Voltage | 120V AC | | Battery Backup | Yes | | Battery Type | 10-year sealed lithium | | Battery Replaceable | No | | Battery Life Years | 10 | | Voice Alerts | Yes | | Voice Messages | Fire!, Warning, Carbon Monoxide | | Smart Wifi | No | | App Connected | No | | Ring Ecosystem | No | | Interconnect | Yes | | Interconnect Type | wireless-rf | | Wire Free Rf | Yes | | Max Interconnect Devices | 24 | | Max Initiating Devices | 18 | | Self Testing | No | | Hush Feature | Yes | | Smart Hush | No | | Peak Level Memory | No | | Digital Display | No | | Low Level Co Alert | No | | Explosive Gas Detection | No | | Indoor Air Quality | No | | Strobe | No | | Egress Light | No | | Alarm Db | 85 | | Ul Smoke | UL 217 | | Ul Co | UL 2034 | | Warranty Years | 10 | ## What's Included - alarm unit - wire harness - mounting bracket - mounting hardware - battery pre-installed Source: https://www.jaspecs.com/kidde/combo-alarm-hardwired/p4010acsco-w-kidde-hardwired-wire-free-combo-alarm/