Honeywell Home 1046884 Interconnectable Ion Smoke & CO Alarm w/10-YR Battery Backup Overview

Hardwired initiating device — wired PIR, glass break, or contact for direct connection to VISTA zone inputs (IS335, DT8050, FG1625, etc.).

On Honeywell systems, wireless devices are supervised zones on the panel — tamper, low battery, and missing signals appear as trouble conditions that may block arming depending on panel programming.

At a Glance

What This Device Does Well

Provides reliable supervised status at the panel and Total Connect 2.0 when installed, enrolled, and range-tested correctly.

Before You Service or Replace One

• Sensor SKU — 5800 Series one-way vs SiX two-way encrypted vs hardwired.
• Panel online — resolve panel AC/cell trouble before blaming sensor.
• Range — 5800RP repeater or move 5881EN/6160RF receiver path for distant zones.
• Battery type — use listed cell; replace all batteries in multi-cell devices.
• Tamper — cover fully closed before declaring hardware fault.

Official Sources

• Resideo product page
• User's Manual: SMICO105-AC Interconnect Hardwire Smoke and CO Alarm with 10-Year Battery Backup (English)
• SMICO105-AC Specification Sheet (English)
• User's Manual: SMICO105-AC Interconnect Hardwire Smoke & CO Alarm with 10-Year Battery Backup (Spanish)
• More Information on Ionization vs. Photoelectric Smoke Alarms

Use official Resideo install PDFs and install guides for exact wiring, enrollment, and firmware — specifications vary by SKU and region.