The Kidde RF-SM-DC uses radio frequency (RF) technology to wirelessly interconnect with other compatible Kidde alarms — when one alarm sounds, they all sound, without the need for hardwired interconnect runs. A Smart touch button quickly silences nuisance alarms. Battery-powered operation means no wiring is required for installation. This model has been superseded by newer Wire-Free RF models.
How does wireless interconnect work on the RF-SM-DC?
The RF-SM-DC uses radio frequency signals to communicate with other compatible Kidde RF alarms. When one alarm detects smoke, it transmits a signal to all paired alarms in the system, triggering them simultaneously. No hardwired connections between alarms are required.
Can I mix the RF-SM-DC with hardwired Kidde alarms?
The RF-SM-DC is designed to work within a compatible Wire-Free RF network. Compatibility with specific hardwired systems depends on the model. Check Kidde compatibility charts or contact Kidde support for your specific installation.
How many alarms can be interconnected with the RF-SM-DC?
The RF-SM-DC supports wireless interconnect with up to 24 compatible devices in a network, allowing whole-home coverage without running wires between floors or rooms.
Does the RF-SM-DC need to be hardwired?
No. The RF-SM-DC is entirely battery-powered and requires no electrical wiring. The wireless RF technology handles all communication between alarms in the network.
What is the newer replacement for the RF-SM-DC?
Kidde has introduced newer Wire-Free RF models including the P4010DCS-W with a 10-year sealed battery and voice alerts. These offer improved battery life and additional features over the original RF-SM-DC.
# Kidde Battery Operated Wireless Interconnect Smoke Alarm **Model:** `RF-SM-DC` **Brand:** Kidde **Category:** Smoke Alarm Wire Free > The Kidde RF-SM-DC uses radio frequency (RF) technology to wirelessly interconnect with other compatible Kidde alarms — when one alarm sounds, they all sound, without the need for hardwired interconnect runs. A Smart touch button quickly silences nuisance alarms. Battery-powered operation means no wiring is required for installation. This model has been superseded by newer Wire-Free RF models. ## Specifications | Attribute | Value | |---|---| | Product Type | Smoke Alarm | | Alarm Type | smoke | | Sensor Smoke | ionization | | Power Source | battery-aa | | Battery Backup | No | | Battery Type | 9V | | Battery Replaceable | Yes | | Voice Alerts | No | | 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 | No | | Alarm Db | 85 | | Ul Smoke | UL 217 | | Warranty Years | 10 | ## What's Included - alarm unit - 9V battery - mounting hardware - quick install guide Source: https://www.jaspecs.com/kidde/smoke-alarm-wire-free/rf-sm-dc-kidde-battery-wireless-interconnect-smoke-alarm/