Features:

• Real time monitor ambiance air quality
• Semiconductor mix gases sensor with 5 years usage and 1 year warranty against manufacturer's defect
• Gas detection: cigarette smoke, VOCs such as formaldehyde and toluene, ethanol, ammonia, hydrogen sulfide, sulfur dioxide, and other harmful gases
• Monitor temperature and relative humidity

Features:

• Designed for real time monitoring of carbondioxide levels in rooms.
• NDIR infrared CO2 sensor inside with special
  Self Calibration System. It makes the CO2
  measurement more accurate and reliable in
  use.
• More than 10 years lifetime of CO2
  sensor.
• Real time carbon dioxide detection and
  monitoring.
• Temperature and humidity detection and
  display.
• Three-color backlit LCD and buzzer alarm.
• Provide 1x on/off output to control
  ventilator
• 220VAC or 24VAC/VDC power selectable;
  power adaptor , desktop and wall mount
  options.
• EU standard and CE-approved.
  
  
  

Applications:

• Hotels, exhibition halls, hospitals, shops,
  restaurants, airports, train stations, theaters
  and other public places.
  
• Houses, villas, condominiums, offices,
  meeting rooms, classrooms and other rooms.
  
• All ventilation systems to gauge optimum
  performance.
  
• AHU rooms.
  
  
  

Features:

• Design for real time detecting and monitoring
  ambiance ozone level and temperature
  
• Electrochemical ozone sensor with high
  sensitivity
  
• Particular LCD display with three color backlights
  (Green/Yellow/Red)
  
• Maximum ozone measuring range:
  0~5000ppb(0~9.81mg/m3) /0~1000ppb Also
  reset the measurement range by end user
  
• 2xOn/Off dry contact outputs for two stages
  alarm device, or control a ozone generator or a
  ventilator
  
• Buzzer alarm and 3-color backlight LCD
  indication
  
  

• 6 IN1 portable air quality detector
• Measure Parameters: PM2.5, PM10, VOC, Formaldehyde, temperature, humidity, air quality index
• 3% Accuracy
  

Features:

• Digital LCD display
  
• Auto/manual zero
  
• Memory for 10 complete data sets
  
• Record Mode
  LED light audible alarm
  
• High accuracy, quick response
  
• Pocket size and easy to use
  
• Fast sampling
  
• Max hold
  
• Data hold
  
• Auto power off
  
• Above 200ppm, warning beeper sounds continuously
  
  

Features:

• Indoor relative humidity and comfort level indicator
  
• Clock display with alarm function
  
• Selectable - Celsius or Fahrenheit (°C or °F)
  display by pressing C/F key