1 X Air Quality Detector. Built-in lithium battery: 1200mAh. Due to different monitor settings and lighting conditions, the actual color of the item may vary slightly from the pictures. With LCD Screen Or Not: Yes.
eBay
Qingping Air Monitor Gen 2, 7in1 Indoor Air Quality Meter Detects PM2.5,CO2,PM10,eTOVC,Noise,Temperature and Humidity,with Alarm
Aliexpress UK
Indication of Carbon Dioxide (CO2) level concentration (CO2 equivalent): 400 to 9999 ppm. Resolution:1 ppm. equivalent CO2. Humidity level: from 10% to 95% RH. Resolution: 1%. Large colour LCD screen (8.4 cm) with very good contrast.
eBay
Tuya WiFi Multifunctional Air Quality Meter Household HCHO TVOC Carbon Monoxide CO2 PM2.5 PM10 Tester Portable
Aliexpress UK
1 Air Quality Analyzer. The product is compact in size and easy to carry. The ventilation holes in the rear not only accelerate the convection between the air and the machine, so as to achieve effective detection, but also provides fine heat dissipation effect.
eBay
5-in-1 Air Quality Monitor Air Quality Detector USB Charging Indoor Air Quality Meter Formaldehyde Monitor for Indoor Outdoor
Aliexpress UK
Specifications: Screen type: LCD Carbon dioxide Detection Range: 400-5000PPM Carbon dioxide Detection Sensitivity: 1PPM Temp Measuring Range: 0 ~ 50 °C Temp Measurement Accuracy: ± 1 °C Humidity Measurement Range: 0% ~ 99% RH Humidity measurement accuracy: ± 2% RH Charging Modes: TYPE-C 5V Battery: Built-in lithium battery 1200mAh Size: 9 x 7 x 3cm / 3.54 x 2.75 x 1.18inch Screen: 2.8 inch Colors: White/Black Package Included: 1 X Carbon Dioxide Detector 1 X Data Cable 1 X Manual.
eBay
Air Quality Meter Fast Data Refresh Rechargeable Air Quality Detector Long Battery Life LCD Color Screen High for Home
Aliexpress UK
1 X Air Quality Detector. Built-in lithium battery: 1200mAh. Due to different monitor settings and lighting conditions, the actual color of the item may vary slightly from the pictures. With LCD Screen Or Not: Yes.
eBay
Protmex Portable Multifunctional Carbon Monoxide CO2 Detector Air Quality Meter Temperature Humidity Meter with Touch Screen UV
Aliexpress UK
0 ~ 0.6 mg/m³ (HCHO formaldehyde). Large backlit LCD display, you can clearly see the amount of electricity, CO2, TVOC, HCHO, temperature and humidity. Sensor: NDIR infrared carbon dioxide sensor / semiconductor sensor.
eBay
18-in-1 Air Quality Monitor with CO2 Monitor/HCHO/TVOC/Temperature/Humidity Colorful TFT Display Screen Air Quality Meter
Aliexpress UK
To help you know the air quality of the place where you live. TVOC: 0-9.999mg/m3. HCHO detection range: 0-9.999mg/m3. PM2.5 detection range: 0-999ug/m3. This empowers you to take necessary actions to enhance the air quality in your surroundings.
eBay
3 in 1 Air Quality Meter CO2 Temp Humidity Tester LCD Screen NDIR Sensor Carbon Dioxide Monoxide Detector with Voice Alarm
Aliexpress UK
1 Air Quality Analyzer. The product is compact in size and easy to carry. The ventilation holes in the rear not only accelerate the convection between the air and the machine, so as to achieve effective detection, but also provides fine heat dissipation effect.
eBay
9in1Tuya WiFi Air Quality Meter Household HCHO TVOC Carbon Monoxide CO2 PM2.5 PM10 Tester Portable Temperature Humidity Detector
Aliexpress UK