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Yesterday Carbon Monoxide Detector with LED Screen, Alarm, Humidity and Temperature Detection
This 3-in-1 carbon monoxide detector is designed for homeowners and campers who need reliable protection in compact spaces. Think of it for monitoring a basement workshop or checking air quality in a camper during trips.
While most detectors focus only on alarms, this device offers a unique perspective as a comprehensive air quality monitor. It gives you peace of mind by tracking not just CO levels but also humidity and temperature, helping you spot issues like mold risk before they become serious. The LED screen clearly shows real-time readings, so you can glance at it without guessing.
In practice, the alarm sounds promptly if CO levels rise, and the humidity sensor might alert you to a damp problem in your garage before you notice musty smells. It's a practical tool for keeping your indoor environments safe and comfortable, whether at home or on the road.
Features
- LED screen display
- Humidity and temperature monitoring
- Portable for camping use
- Green color option
- Carbon monoxide detection with alarm
General specs
- Brand: Yesterday
- Seller: Joom
- ID: 694ba71f60a97301203cf7d8
- Size: 0.75 inches
- Use Case: Camping
- Alarm Type: Audible Alarm
- Display Type: LED Screen
- Power Source: Battery
- Detection Type: Carbon Monoxide, Humidity, Temperature
- Measurement Units: °F, % RH
- First listed by seller: February 15, 2026
If you are interested in more details, you can find full information on the seller's page.
€40.12
Last price update: 2/15/26
Available to order
Shipping options
Delivery to 
United States
United States
Unavailable
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| Brand | Yesterday | MOES | TUIKEN | |||
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| Price | €40.12 | €15.29 | €18.69 | €16.56 | €10.19 | €37.56 |
| Seller | Joom | Banggood | Banggood | Banggood | Banggood | Retailer |
| Update | Feb 14, 2026 | May 9, 2026 | May 9, 2026 | May 9, 2026 | May 9, 2026 | Apr 30, 2026 |
| Product Type | Air Quality Meter, Carbon Monoxide Detector | Multi Gas Smoke Detector | Air Quality Monitor | |||
| Dimensions | 4.94 in x 2.38 in x 1.43 in | 103mm x 56mm x 32mm (4.06in x 2.20in x 1.26in) | 3.15 in x 1.50 in x 2.95 in | |||
| Power Supply | AC 100-240V with built-in rechargeable battery 1000mAh | AC100-240V | 3.7V (3 AAA batteries) | |||
| Package Contents | 1 x CO Detector, 1 x User Manual | 1 x Air Monitoring Alarm | 1 x Air Quality Monitor | |||
| Alarm Sound Level | ≥85 dB | ≥70dB at 1 meter distance | ≥100dB | |||
Carbon Monoxide Detector with LED Screen, Alarm, Humidity and Temperature Detection
€40.12
When this device makes sense
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