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  1. Science Mad Digital Metal Detector

  2. 5in1 CO2 Meter Temperature Humidity Air Quality Monitor Carbon Dioxide Detector

    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

  3. 14 In 1 WIFI Intelligent Air Quality Monitor Indoor CO2 Detector UK5

    CO2 Detection Accuracy: 1PPM. CO2 Detection Ranges: 400-6000PPM, ±50±10%PPM. Battery: Built-in 3.7V, 2000mAh Lithium Battery. CO Detection Accuracy: 1PPM. PM2.5 Detection Accuracy: 1ug/m3. 1 Air Quality Monitor.

    eBay

  4. Newentor CO2 Monitor Air Quality Detector Voice Alert Temp Humidity Alarm Clock

    Manufacturer Newentor. Step into a world of enhanced indoor air quality monitoring with the Newentor CO2 Monitor. Experience unparalleled indoor air quality monitoring with the Newentor CO2 Monitor.

    eBay

  5. WiFi 15 in 1 Portable AQI PM0.3 PM1.0 PM2.5 PM10 Tester TFT Display CO2 Detector

    PM0.3 detection range: 0-999μg/m³, ±10μg/m². PM10 detection range: 0-999μg/m³, ±10μg/m 3. PM2.5 detection range: 0-999μg/m³, ±10μg/m 3. PM2.5 detection sensitivity: 1μg/m³. PM1.0 detection range: 0-999μg/m³, ±10μg/m 3.

    eBay

  6. CO2 Meter Carbon Dioxide Detector Indoor Air Quality Monitor TVOC HCHO Sensor

    eBay

  7. 5 in 1 Portable CO2 Meter Air Quality Monitor TVOC HCHO Carbon Dioxide Detector

    Large backlit LCD display, you can clearly see the amount of electricity, CO2, TVOC, HCHO, temperature and humidity. 0 ~ 2.0 mg/m³ (TVOC). 0 ~ 0.6 mg/m³ (HCHO formaldehyde). Sensor: NDIR infrared carbon dioxide sensor / semiconductor sensor.

    eBay

  8. Desktop CO2 RH Temp. 3-in-1 Air Quality Detector CO2 Measuring Instruments

    The screen has a wide viewing angle of up to 160 °, which is very easy to read. Test function: CO2, temperature & humidity. CO2 test area: 400 ~ 4000 ppm. 1 Air Quality Detector. Simple stylish look: The air quality monitor has a small size and a clear design and fits perfectly with every house with every decorative style.

    eBay

  9. 14 In 1 WIFI Intelligent Air Quality Monitor Indoor CO2 Detector UK1

    CO2 Detection Accuracy: 1PPM. CO2 Detection Ranges: 400-6000PPM, ±50±10%PPM. Battery: Built-in 3.7V, 2000mAh Lithium Battery. CO Detection Accuracy: 1PPM. PM2.5 Detection Accuracy: 1ug/m3. 1 Air Quality Monitor.

    eBay

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