Zcombo-g (ZCOMBO) manual for Z-Wave

The following is an overview of the user manual for the Z-Wave product Zcombo-g (ZCOMBO)from BRK Brands, Inc. To view other Z-Wave products and manuals from BRK Brands follow that link.

  1. Overview
  2. Security
  3. Features
  4. Installation instructions


SKU Code
The Z-Wave Smoke/CO alarm can be implemented in residential and institutional applications. Installation settings include sleeping areas within hospitals, hotels, motels, dormitories and other multi-family dwellings that are defined in standard NFPA 101. The First Alert ZCOMBO-G Smoke and Carbon Monoxide Detector has been fully tested and complies with UL217, UL2034, CSFM, NFPA 720, NFPA 101 and other agencies that model their codes after the above agencies. The combination alarm meets building codes that require the use of a battery operated Z-Wave wireless Smoke and CO detector. This First Alert Z-Wave Combination Alarm includes silence features and meets the model building codes published by the ICC.

The First Alert Z-Wave Combo Alarm includes: an insect screened photoelectric smoke sensing chamber, electrochemical carbon monoxide sensor, 85dB horn, supervised 3V (2 AA batteries) power supply, full function test switch and a silence feature.

The First Alert Z-Wave Enabled Battery Smoke & Carbon Monoxide Combo Alarm includes a battery drawer that prevents battery removal and tamper resistant locking pins that lock the alarm to the mounting bracket. This First Alert Combination Alarm is an ideal fit for any number of applications that include apartments, dormitories, and hotels. Designed for wall or ceiling mounting, this alarm includes all of the required mounting anchors and screws needed for easy installation.
Version #
HW: 2 FW: 4.01:00.01 was the version certified
Certification #
Z-Wave Version


As a Z-Wave Plus certified product, Zcombo-g supports Z-Wave S2 security. The following security modes are directly supported:

  • S2 Unauthenticated


BRK Brands describes Zcombo-g as having the following features:

  • Battery powered using AA batteries
  • Color
  • Outdoor Use
  • Battery Quantity
  • FLiRS capable
  • Supports Network Wide Inclusion
  • Supports Z-Wave Explorer Frames
  • Supports Z-Wave SmartStart allowing you to setup the product simply by scanning its QR code via

Installation instructions

To manual wake-up the device, slide the battery door open wait for ~5 seconds and then slide the battery drawer closed. Upon power-up, the device will send the wake-up notification.

Factory reset Zcombo-g

Please use this procedure only when the network primary controller is missing or otherwise inoperable.
If the device is powered up with the test button held down for 10+ seconds, the device will reset all Z-Wave settings and leave the network.
Upon completion of the Reset operation, the LED will glow and the horn will sound for ~1 second.

1. Slide battery door open.
2. Insert batteries checking the correct orientation.
3. Press and hold the test button. Keep it held down as you slide the
battery drawer closed. You may then release the button.

1. Slide battery door open.
2. Remove and re-insert batteries checking the correct orientation.
3. Press and hold the test button. Keep it held down as you slide the
battery drawer closed. You may then release the button.

Please note that this is a user manual Zcombo-g from BRK Brands, Inc is provided as is and without warranty; all information contained herein is provided by the manufacturer or the certifying body. The information provided is for reference only and is not intended to be used as a substitute for professional advice. ZWaveProducts.com only warrants and is only able to support products purchased directly from us. If you have Zcombo-g and have not purchased it from us, please contact the manufacturer directly with any further questions you may have.