3 In 1 Air Quality Monitor CO2 Meter CO Temperature Humidity Measurement NDIR Sensor LCD Display Alarm Carbon Dioxide Detector
SPECIFICATIONS
Application Scenarios: Civilian Grade
Battery Included: no
Brand Name: JUANJUAN
Certification: CE
Choice: yes
DIY Supplies: Electrical
Gas Type: Multifunctional
High-concerned chemical: none
Is Smart Device: no
Measurement Range: NDIR Sensor
Model Number: Air Quality Tester
Origin: Mainland China
PCBincluded: No
Semi-finishedproduct: No
With LCD Screen Or Not: Yes
semi_Choice: yes
3 In 1 Air Quality Monitor CO2 Meter CO Temperature Humidity Measurement NDIR Sensor LCD Display Alarm Carbon Dioxide Detector
PLS Note: There are three products to choose from CO2 White, CO White, and CO Orange!!!
CO2 Meter
This portable air quality tester adopts a stable performance and high detection accuracy sensor, supporting real-time monitoring of CO2 concentration, temperature, and relative humidity in the air. Digital TFT LCD display, with brightness automatic adjustable function, so you can see the readings at a glance. Equipped with air quality level classification function, power saving mode, Type-C interface detection, touching buttons, and other functions to meet your usage needs. There are multiple custom setting options, including screen off time, CO2 calibration, temperature unit switching, sound and vibrating switch, etc., which make your usage experience more personalized and convenient. 3D porous housing with multiple ventilation holes designed for real-time air circulation convection. The sensor and theair are fully contacted, highly sensitive, and accurate in the detection of small particle content. It can be widely used in a variety of occasions.
Features:
【Compact and Exquisite】: Compact body design, simple and stylish appearance, lightweight, and easy to carry. 3D porous housing with multiple ventilation holes designed for real-time air circulation convection. The sensor is in full contact with the air for high sensitivity and accurate detection of small particle content.
【High Accurate Sensor】: Adopting non-dispersive infrared (NDIR) technology, it detects and accurately displays the carbon dioxide concentration in the air in real-time. Its high resolution of up to 1PPM and measurement accuracy of ±50+5%* ensure the accuracy and reliability of the data. The device also integrates temperature and humidity detection functions, allowing you to keep track of the air quality around you wherever you are.
【Air Quality Classification & Intelligent Alarm】: Equipped with an air quality classification function, 4 different colors correspond to different air quality classes, allowing you to understand the current air condition more accurately and graphically. When the carbon dioxide concentration reaches 1500PPM, the device will automatically vibrate and promote a sound alarm, reminding you to take timely measures to protect your and your family's health.
【Multi-function Design】: This product combines power saving mode, Type-C interface detection, touching buttons, and other functions to meet your usage needs. There are multiple custom setting options, including screen off time, CO2 calibration, temperature unit switching, sound and vibrating switch, etc., which make your usage experience more personalized and convenient.
【Intelligent Energy Saving and Humanized Design】: The display has an automatic brightness adjustment function that automatically adjusts the screen brightness according to the ambient light to conserve power. You can also monitor carbon monoxide levels even when the screen is turned off to conserve battery lifespan. It supports USB Type-C continuous power input and has a built-in 800mAh lithium battery to ensure a long lifespan.
【Convenient to Carry & Widely Used】: It adopts lightweight lanyard design for easy to carry. It can be widely used in a variety of occasions, such as homes, greenhouses, camping barbecues, factories, automobiles, environmental monitoring, and so on.
Specifications:
Name: Air Quality Tester
Material: plastics
Battery: 1 * built-in 800mAh lithium battery (included)
Powersupply: 5V, 2A Type-C interface
CO2 detection ranges: 400-5000ppm
CO2 detection accuracy: ±(50+5%*of reading)PPM
Temperature detection ranges: 0-50℃
Temperature detection accuracy: ±1℃
Humility detection ranges: 0-99%RH
Humility detection accuracy: ±5%RH
Item size: 50 * 85 * 17mm / 1.97 * 3.35 * 0.67in
Item weight: 54g / 1.90ounce
Package size: 135 * 96 * 31mm / 5.31 * 3.78 * 1.22in
Package weight: 130g / 4.59ounce
Packing List:
1 * Air Quality Tester
1 * Type-C Cable
1 * Lanyard
1 * Instruction






CO Meter
This portable air quality tester adopts a stable performance and high detection accuracy sensor, supporting real-time monitoring of CO concentration, temperature, and relative humidity in the air. Digital TFT LCD display, with brightness automatic adjustable function, so you can see the readings at a glance. Equipped with air quality level classification function, Type-C interface detection, touching buttons, and other functions to meet your usage needs. There are multiple custom setting options, including screen off time, CO calibration, temperature unit switching, sound and vibrating switch, etc., which make your usage experience more personalized and convenient. 3D porous housing with multiple ventilation holes designed for real-time air circulation convection. The sensor and theair are fully contacted, highly sensitive, and accurate in the detection of small particle content. It can be widely used in a variety of occasions.
Features:
【Compact and Exquisite】: Compact body design, simple and stylish appearance, lightweight, and easy to carry. 3D porous housing with multiple ventilation holes designed for real-time air circulation convection. The sensor is in full contact with the air for high sensitivity and accurate detection of small particle content.
【CO Concentration & Temperature & Humidity Measurement】: Built-in nice-performance infrared carbon dioxide sensor, electrochemical sensor and a high-precise optical sensor to real-time detect the CO concentration, temperature and humidity data at the same time, to ensure obtained accurate data easily in harsh environments. High sensitivity, ultra-low power consumption, fast computing speed, and the detection results are more accurate.
【Air Quality Classification & Intelligent Alarm】: Equipped with an air quality classification function, 4 different colors correspond to different CO concentration classes, allowing you to understand the current air condition more accurately and graphically. When the carbon monoxide concentration reaches 25PPM, the device will automatically vibrate and promote a sound alarm, reminding you to take timely measures to protect your and your family's health.
【Multi-function Design】: This product combines Type-C interface detection, touching buttons, and other functions to meet your usage needs. There are multiple custom setting options, including screen off time, CO calibration, temperature unit switching, sound and vibrating switch, etc., which make your usage experience more personalized and convenient.
【Intelligent Energy Saving and Humanized Design】: The display has an automatic brightness adjustment function that automatically adjusts the screen brightness according to the ambient light to conserve power. You can also monitor carbon monoxide levels even when the screen is turned off to conserve battery lifespan. It supports USB Type-C continuous power input and has a built-in 800mAh lithium battery to ensure a long lifespan.
【Convenient to Carry & Widely Used】: It adopts lightweight lanyard design for easy to carry. It can be widely used in a variety of occasions, such as homes, greenhouses, camping barbecues, factories, automobiles, environmental monitoring, and so on.
Specifications:
Name: Air Quality Tester
Material: plastics
Color: white, orange (optional)
Battery: 1 * built-in 800mAh lithium battery (included)
Powersupply: 5V, 2A Type-C interface
Intelligent alarm:
Green: 0-24 PPM, no reaction.
Yellow: 25-49 PPM, it vibrates & rattles continuously 3 times every minute.
Orange: 50-99 PPM, it vibrates & rattles continuously 5 times every 1 minute.
Red: 100 PPM or more, continuous vibrating and rattling.
CO detection ranges: 0-999ppm
CO detection accuracy: ±(10+5%*of reading)PPM
Temperature detection ranges: 0-50℃
Temperature detection accuracy: ±1℃
Humility detection ranges: 0-99%RH
Humility detection accuracy: ±5%RH
Item size: 50 * 85 * 17mm / 1.97 * 3.35 * 0.67in
Item weight: 54g / 1.90ounce
Package size: 135 * 96 * 31mm / 5.31 * 3.78 * 1.22in
Package weight: 130g / 4.59ounce
Packing List:
1 * Air Quality Tester
1 * Type-C Cable
1 * Lanyard
1 * Instruction

















- Standard Shipping: Standard Shipping (12–18 Business Days)
- Express Shipping: Expedited Shipping (5–9 Business Days)
- Free Shipping: Orders over $199 qualify automatically
- Tracking: Full tracking number provided for all orders
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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