BRK ZCOMBO-G Z-Wave Smoke & CO Alarm — Specifications

Specification sheet for the BRK ZCOMBO-G (model ZCOMBO), a single-station combination smoke and carbon monoxide alarm with Z-Wave wireless interconnect, designed for residential and institutional applications including sleeping rooms of hospitals, hotels, motels, dormitories, and other multifamily dwellings.

Overview

The ZCOMBO-G features a fully insect-screened photoelectric smoke sensing chamber and an electrochemical carbon monoxide sensor, an 85dB horn, a supervised 3V (2 AA battery) power supply, a full-function test switch, and a silence feature. It communicates with any Z-Wave wireless hub using the basic command class required by all Z-Wave devices, and supports one association group with up to 1 node for sending alarms.

Note: This alarm will not connect to Onelink or BRK Wireless Interconnect alarms — it requires a Z-Wave hub (not included).

Key Features

• Photoelectric smoke sensing — generally more sensitive to large particles produced by smoldering fires
• Z-Wave wireless interconnect — communicates with any Z-Wave technology hub
• Silence feature — silences nuisance alarms
• Tamper resistant — locking pins lock the alarm to the mounting bracket and battery drawer, preventing removal
• Electrochemical CO sensor calibrated not to alarm below 30 PPM sustained for 30 days
• "End of Life" signal, temporarily silenceable for up to 2 days

Technical Specifications

CO Alarm Response Times

• 400 PPM CO: alarms between 4 and 15 minutes
• 150 PPM CO: alarms between 10 and 50 minutes
• 70 PPM CO: alarms between 60 and 240 minutes
• Below 30 PPM sustained for 30 days: will not alarm

Parts of the Alarm

Top of Alarm: Test/Silence button, battery drawer, Power/Alarm LED, CO Alarm LED, Horn.

Bottom of Alarm: Mounting bracket, mounting slots & locking tabs (break-out tab), battery drawer for 2 AA batteries, twist-to-attach/remove mechanism.

Battery drawer lock: Remove the pin from the mounting bracket, close the door, then insert the pin through the holes in the alarm and battery drawer to lock it.

Compliance

Complies with UL217, UL2034, CSFM, NFPA 72, NFPA 720, and NFPA 101, and meets ICC model building codes requiring battery-operated Z-Wave wireless smoke and CO alarms with silence features. Installation must conform to NFPA 72 and NFPA 720 — always check local building codes and follow placement guidance in the user's manual sections "Recommended Locations for Smoke Alarms" and "Locations to Avoid for Smoke Alarms."

Shipping Specs