Combination Explosive Gas and Carbon Monoxide Alarm with Backlit

In this review the First Alert GCO1CN is evaluated as a practical, plug-in safety device for homes that need combined protection from combustible gases and carbon monoxide. The bottom line: this alarm is a solid, easy-to-install choice for people who want a single unit that detects propane, natural/methane gas and carbon monoxide while showing current and peak CO levels on a crisp backlit digital display. Its plug-in design with battery backup and remote-mute compatibility makes it especially convenient for living areas and rooms with fuel-burning appliances.

Key Features

• Combined detection: Monitors propane and methane combustible gases plus carbon monoxide in one compact alarm for broader protection without multiple devices.
• Backlit digital display: Shows current and peak CO readings so users can quickly see gas levels at a glance, day or night.
• Remote mute compatibility: Can be silenced using most household remote controls for convenient nuisance alarm management.
• Plug-in with battery backup: Plugs into any AC outlet for quick setup and includes a 9-volt battery so protection continues during power outages.
• Electrochemical CO sensor: Uses the most accurate CO sensing technology available for reliable carbon monoxide detection from fuel-burning appliances or blocked vents.
• Loud 85 dB alarm: Emits a strong audible alert that can be heard across typical rooms to wake occupants or prompt evacuation.

Who It's For

The GCO1CN is well suited to homeowners and renters who want a low-effort way to monitor both explosive gases and carbon monoxide with one device, particularly near fireplaces, furnaces, kitchens or garages. People who value visible readouts will appreciate the digital display that reports current and peak CO levels.

It is less appropriate for users who need wireless network integration, smartphone alerts, or wall-mounted hardwired detectors; those who require integrated multi-room monitoring or a different mounting style should look at alternative models designed for whole-house systems.

Pros & Cons

Pros

• Combines propane, methane and CO detection into a single unit for space-efficient protection.
• Clear backlit display provides current and peak CO measurements for quick assessment.
• Easy plug-in installation with included 9-volt battery keeps the unit working during outages.
• Remote mute compatibility and an audible 85-decibel alarm improve convenience and response.

Cons

• Some users report inconsistent detection performance, so its reliability may vary by environment and placement.
• The unit does not provide smart alerts or network connectivity for remote monitoring.

Specifications

Product type	Plug-in combination CO and explosive gas alarm
Detected gases	Propane, natural/methane gas, carbon monoxide
Sensor technology	Electrochemical CO sensor
Alarm volume	85-decibel
Power	AC plug-in with 9-volt battery backup
Display	Backlit digital display (current and peak levels)

Our Verdict

The First Alert GCO1CN is a practical, value-focused option for anyone who needs combined explosive gas and carbon monoxide detection without complicated installation. Its easy setup, clear digital readout and battery backup make it a sensible pick for living rooms, basements and utility areas, though those who need remote notifications or whole-house integration should consider other systems.

Frequently Asked Questions

Can this alarm detect both propane and natural gas?
Yes, it is designed to detect combustible gases including propane and natural/methane gas in addition to carbon monoxide.

Will it keep working during a power outage?
Yes, the unit plugs into an AC outlet for normal power and includes a 9-volt battery backup to maintain protection during outages.

Can I mute the alarm remotely?
It can be remotely muted using most standard household remote controls, allowing convenient silence of nuisance alerts.