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CHT89 : CO2 Thermo-hygrometer Logger

Special Features :

Most effective smart, easy and simple to use for indoor air quality
Measures CO2, Temperature, Humidity in one meter
ABC (Automatic Baseline Calibration) default and may disable
Triple display, easy to understand and read
CO2 High alarm threshold setting with audible beep
Design with NDIR (Non-dispersive infrared technology) long life CO2 sensor, measure up to 9,999ppm
Great tool to check indoor air quality or plant growth, green house photosynthesis monitoring
Tripod receptacle for long time logging at the certain place
Long life sensors
All sensors are well calibrated before shipment
Made in Taiwan
This portable USB interface on line logging CO2, Thermo-hygrometer is used to measure CO2 Concentration, Air Temperature and Relative Humidity with audible alarm. It is an ideal for Indoor Air quality ( IAQ ) diagnosis.This meter also measures Dew Point and Wet bulb Temp.
Carbon dioxide (CO2) is a gaseous component of the earth's atmosphere. The concentration of CO2 in natural ambient air is about 0.04% or 400ppm. With each breath, human convert oxygen (O2) into carbon dioxide (C02). Although carbon dioxide is invisible and odorless, an increased CO2 content makes is apparent because human will notice increased fatigue and reduce concentration.
This item complies with all essential health and safety requirements set out in European Directives (CE marking). Plus all parts are made in and manufactured in Taiwan.
Specifications :
Parameter : Carbon Dioxode (CO2)
      Dew Point
      Wet Bulb Temp
CO2 Measure range : 0~9,999 ppm
CO2 accuracy : ±75ppm + 5% of reading (0~2,000ppm),others unspecified
Temperature Measurement : Range : 10.0~50.0°C (50.0~122.0°F)
      Accuracy : ±1.0°C / 2.0°F
Relative Humidity
(RH%) Measurement
: Range : 0.1~99.9%RH
      Accuracy : ±5% RH (at 25°C 10~90%RH), others ±7%RH
Power Supply : 6 x AAA batteries (included in set)
      AC/DC adaptor (not included in set)
temperature data loggers,temperature data logger
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