Product Description

Protect the Air You Breathe With Smarter Indoor Monitoring

Stay informed about the conditions inside your home with a convenient 4-in-1 indoor air quality monitor. The 849A monitors carbon monoxide (CO), TVOC, formaldehyde (HCHO), temperature, and humidity, giving you an easy way to keep track of important indoor environmental conditions.

Its clear LCD display and audible alarm make it simple to monitor your surroundings at a glance—whether you're checking a bedroom, kitchen, office, or other enclosed indoor space.

Key Benefits

• Monitor Carbon Monoxide: Keep an eye on CO levels with real-time monitoring and an audible alarm when detected levels reach the device's alarm threshold.
• Track Indoor Air Quality: Monitor TVOC and HCHO levels to stay more informed about potential indoor air pollutants.
• Check Temperature & Humidity: Quickly view room temperature and relative humidity to help maintain a more comfortable indoor environment.
• Loud Audible Alarm: An alarm rated above 85 dB provides an audible alert when applicable detection thresholds are reached.
• Easy-to-Read LCD Display: View environmental readings clearly without complicated setup or controls.
• Compact Design: Its portable ABS housing makes it convenient for use in different rooms around your home or workspace.
• Multi-Purpose Monitoring: A practical choice for bedrooms, kitchens, offices, hotels, and other enclosed spaces.

Features

• 4-in-1 indoor environmental monitoring
• Carbon monoxide (CO) detection
• TVOC monitoring
• HCHO/formaldehyde detection
• Temperature monitoring
• Relative humidity monitoring
• LCD display
• Audible alarm above 85 dB
• ABS plastic housing
• Simple button controls
• 110V–240V power supply
• Compact and portable design

Specifications

• Model: 849A
• Detection: CO, TVOC, HCHO
• Temperature Range: 0°C–50°C (32°F–122°F)
• Humidity Range: 20%–90% RH
• Alarm: >85 dB
• Material: ABS
• Display: LCD
• Power: 110V–240V
• Plug: US/EU plug options

Who It's Perfect For

• Homeowners who want to monitor indoor environmental conditions
• Families looking for convenient CO and air-quality monitoring
• Bedrooms and living spaces
• Kitchens and enclosed areas
• Home offices and workspaces
• Hotels and other indoor environments

Important: This product is intended as a monitoring device. Always follow applicable safety guidance and do not rely on it as the sole protection against carbon monoxide or other hazardous conditions.

Take a closer look at your indoor environment. Add the 4-in-1 CO & Air Quality Monitor to your home today and make everyday indoor monitoring simple and convenient.