The Kidde P4010DCSCO-W is a 10-year sealed battery combination smoke and CO alarm with supervised wire-free interconnect capability. When one alarm sounds, all connected alarms sound — without any wiring. Voice notifications accompany the 85 dB alarm tone, with additional verbal messages such as 'Replace alarm' at end of life and 'Hush mode activated' when a nuisance alarm is silenced. A three-color LED status ring provides instant status identification. Bug screen protects the sensor from insect entry. This model is replaced by the 30CUD10-V.
How does wire-free interconnect work?
Wire-free interconnect uses RF (radio frequency) wireless signals between alarms. When one alarm detects smoke or CO, it transmits a signal to all other connected alarms in the network, causing them to sound simultaneously. No hardwiring between alarms is needed — each alarm just needs to be within RF range of the others.
How many alarms can be interconnected wirelessly?
The P4010DCSCO-W supports up to 24 interconnected devices in a network, with up to 18 initiating devices (devices that can trigger the network). This is sufficient for large homes with multiple floors.
# Kidde Wire-Free Interconnected Battery Powered Smoke and CO Alarm **Model:** `P4010DCSCO-W` **Brand:** Kidde **Category:** Combo Alarm Wire Free > The Kidde P4010DCSCO-W is a 10-year sealed battery combination smoke and CO alarm with supervised wire-free interconnect capability. When one alarm sounds, all connected alarms sound — without any wiring. Voice notifications accompany the 85 dB alarm tone, with additional verbal messages such as 'Replace alarm' at end of life and 'Hush mode activated' when a nuisance alarm is silenced. A three-color LED status ring provides instant status identification. Bug screen protects the sensor from insect entry. This model is replaced by the 30CUD10-V. ## Specifications | Attribute | Value | |---|---| | Product Type | Combination Smoke + CO Alarm | | Alarm Type | combo | | Sensor Smoke | photoelectric | | Sensor Co | electrochemical | | Power Source | battery-10yr-sealed | | Battery Backup | No | | 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 (battery pre-installed) - mounting hardware Source: https://www.jaspecs.com/kidde/combo-alarm-wire-free/p4010dcsco-w-kidde-battery-wire-free-combo-alarm/