5-in-1 Air Quality Monitor | CO2, TVOC, Formaldehyde Detector
5-in-1 Air Quality Monitor | CO2, TVOC, Formaldehyde Detector
ALLOET 5-in-1 Portable Air Quality Monitor with Alarm
Breathe easier knowing exactly what's in your air. The ALLOET 5-in-1 Air Quality Monitor is a compact, handheld device that simultaneously measures CO2, TVOC, formaldehyde (HCHO), temperature, and humidity — all displayed in real time on a bright LCD screen. Perfect for bedrooms, living rooms, home offices, kitchens, and even your car.
Made in Mainland China.
Why You'll Love It
- One-Touch Power: Simply long-press the power button to activate. The sensor stabilizes within ~60 seconds, giving you fast, reliable readings right away.
- Audible Alarm Alert: Built-in buzzer notifies you when air quality levels exceed safe thresholds. Toggle the alarm on or off with a quick button press — a white icon means the alarm is active; grey means it's muted.
- Adjustable Auto Shut-Off: Conserve battery life with a configurable auto-off timer (20 min, 40 min, 60 min, or always-on). Customize to your preference with simple button presses.
- Adjustable Screen Brightness: A dedicated brightness button lets you dial in the perfect display visibility for any lighting environment — day or night.
- °C / °F Temperature Switching: Long-press the alarm button to toggle between Celsius and Fahrenheit for flexible environmental monitoring.
- Rechargeable Battery Included: Powered by a built-in 750mAh (3.7V) rechargeable battery — no need to hunt for replacements.
Technical Specifications
| Detection Parameters | CO2, TVOC, Formaldehyde (HCHO), Temperature, Humidity |
| Display | LCD Screen with Adjustable Brightness |
| Battery | 3.7V / 750mAh / 2.75Wh (Included) |
| Casing Material | ABS Plastic |
| Dimensions | Approx. 90 × 50 × 18 mm (3.54 × 1.97 × 0.71 in) |
| Auto Shut-Off | 20 / 40 / 60 min or Disabled |
| Temperature Units | °C / °F (Switchable) |
| Origin | Mainland China |
Ideal For
- Bedrooms, nurseries & living rooms
- Home offices & workspaces
- Kitchens & areas with new furniture or paint (common sources of TVOC & formaldehyde off-gassing)
- Woodworking shops & DIY areas
- Cars & enclosed vehicles
What's in the Box
- 1 × ALLOET 5-in-1 Portable Air Quality Monitor
Note: Due to different monitor settings and lighting conditions, the actual color may vary slightly from product images. Please allow ±1–2 cm in measurements due to manual measuring.
For more information on indoor air quality and its effects on your environment, visit the U.S. EPA Indoor Air Quality resource.
Frequently Asked Questions
Q: What does this 5-in-1 air quality monitor actually measure?
A: This handheld detector simultaneously monitors five key indicators: CO2 (carbon dioxide), TVOC (total volatile organic compounds), formaldehyde (HCHO), temperature, and humidity. All five readings are displayed in real time on the built-in LCD screen, giving you a comprehensive snapshot of your indoor air quality at a glance.
Q: How long does the battery last, and can it be recharged?
A: The device comes with a built-in 750mAh rechargeable lithium battery (3.7V). Battery life varies depending on screen brightness and alarm settings, but the adjustable auto shut-off feature (20/40/60 minutes) helps conserve power when the monitor is not actively in use.
Q: Where is the best place to use this indoor air quality meter?
A: This monitor is great for any enclosed indoor space — bedrooms, nurseries, living rooms, home offices, kitchens, woodworking areas, and even cars. It's especially useful in rooms with new furniture, fresh paint, or flooring, which can emit TVOCs and formaldehyde during off-gassing periods.
Q: Can I silence the alarm without turning off the device?
A: Yes! A quick press of the alarm button toggles the buzzer on or off without powering down the monitor. A white alarm icon on screen means the audible alert is active; a grey icon indicates the alarm is muted — so you can keep monitoring silently when needed.