Product: Langkou Air Quality Monitor Indoor CO2 Detector, Carbon Dioxide Monitor with Alarm Function, Pm1.0/2.5/10 Micron Particulate Matter Dust Temperature Humidity Detector, Built-in Rechargeable Battery
Brand: Langkou
Color: White
With a CO2 Dioxide monitor, you will know the actual level of carbon dioxide in the room.  High levels of carbon dioxide often indicate inadequate ventilation. Low CO2 levels indicate too much fresh air and wasted heating or cooling energy.  In addition to carbon dioxide detection, this device can also measure temperature and relative humidity. 
  Product Specifications Display method: Common Screen display Atmospheric pressure: 86Kpa - 106Kpa Detection method for Co2: Infrared (NDIR) Detection method for PM: laser scattering Sampling time: 1.5 seconds Product Size:90 x90×50mm Detection temperature: -10C to 50°C; Relative humidity: 20%- 85% Storage temperature: -10°C to 60°C; Concentration unit for CO2:PPM Concentration unit for PM: ug/m3 Power source: Lithium battery with 2000 mAh capacity Product weight: 200g 
  Package Included: 1 x Air Quality Monitor 1 x USB Data line 1 x Manual
【Healthy Indoor Climate】: This air quality monitor combines advanced infrared (NDIR) and laser scattering detection sensors to monitor real-time carbon dioxide (CO2), particulate matter <2.5 microns PM2.5 / 1.0 / 10, temperature and humidity information. 24-hour real-time monitoring can ensure your air is safe and clean.
【Easy To Read】: The simple interface of the large LCD screen allows users to easily monitor carbon dioxide levels, and to know the gas concentration, temperature and humidity in the house air at any time. (PM1 / PM2.5 / PM10 reading Automatically switch every 5 seconds). Click the power button to switch between Celsius and Fahrenheit.
【Portable CO2 Detector】: 3.54x3.54x1.97inches, It's easy to carry. You can take it to wherever you want to monitor air quality. Quickly press the power button twice to turn on/off the alarm function (when turn on alarmfunction , it would beep sound once Co2 value more than 1000PPM)
【Rechargeable Battery】: Built-in 2000mAh lithium-ion battery, which can provide more than 10 hours of standby time, and the USB rechargeable function allows it to realize 24-hour real-time monitoring of air quality. Suitable for growth room, incubator, beer, hydroponics And family.
【Simple Operation】: Just one button operation to switch on/off, with a detailed instruction manual, it can be used easily by both the elderly and children. Only in a healthy and safe indoor environment can people or animals live comfortably and grow up healthily.

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