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White rectangular carbon monoxide alarm with side battery compartment and LED indicator

BRK

BRK CO250B Carbon Monoxide Alarm Electrochemical 9V Personal Protective Equipment

SKU CH-D0A2-M1TCD

Electrochemical CO detector with 9V alkaline power, 85 dB alarm at 10 ft, LED visual alert and hush button

  • Electrochemical sensor detects carbon monoxide accurately
  • 85 dB alarm at 10 ft alerts you loudly
  • 9V alkaline battery included powers the unit
  • Side battery compartment with locking pin secures supply
  • Hush mode silences nuisance alarms temporarily

BRK CO250B CO Alarm

The BRK CO250B is a carbon monoxide alarm that uses an electrochemical sensor to detect hazardous gas levels. It operates on a removable 9 V alkaline battery supplied with the unit and provides an audible alert at 85 dB measured at 10 ft. A visual LED indicator and a hush button are integrated into the white housing.

Homeowners needing a standalone CO detector

This alarm suits anyone who wants a battery-powered carbon monoxide detector that can be placed without wiring. It is not for installations that require mains power with battery backup, interconnected tandem operation, or smart-home communication protocols.

Electrochemical sensor with 85 dB alert

The electrochemical sensor and 85 dB sounder at 10 ft are the core specifications that determine whether this detector meets the required safety standard for the intended space.

Highlights

  • Electrochemical sensor detects carbon monoxide accurately
  • 85 dB alarm at 10 ft alerts you loudly
  • 9V alkaline battery included powers the unit
  • Side battery compartment with locking pin secures supply
  • Hush mode silences nuisance alarms temporarily

Specifications

BrandBRK

Questions about this item

How often will the 9V alkaline battery need replacing in this CO250B alarm?

The side-mounted 9V alkaline cell is the sole power source; plan to swap it annually or whenever the low-battery chirp sounds.

What limits continuous operation of the electrochemical sensor in the CO250B?

The electrochemical cell itself has a finite lifespan — typically five to seven years — after which the entire unit must be replaced.

How loud is the 85 dB alarm at 10 ft when it runs all day?

At 85 dB measured at 10 ft the siren is clearly audible through a closed bedroom door, and the LED visual alert adds a silent cue.

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