OPUS 20 CO2 internal sensors USB
Model 8120-20 TCO records Temperature, Relative Humidity, and CO2.
For climate monitoring and recording in buildings, air conditioning units, laboratory, cleanroom, storerooms and museums, alarm indication (current or historical since the last data transmission), conversion of the display from %RH to absolute humidity or dewpoint with SmartGraph professional software.
A high level of CO2 in the air within a room causes headaches, tiredness, and lack of concentration. The regulation on CO2 concentration was established in order to evaluate IAQ (Indoor Air Quality). As a guideline for school rooms in the USA the limit of 1,000 ppm applies; for workplaces, the occupational exposure limit is 5,000 ppm.
|OPUS 20 Temperature/RH/ CO2||Item# 8120-20|
|OPUS 20 Temperature/ RH/|
|Dimensions||6½” x 3″ x 1¼” (166mm x 78mm x 32mm)|
|Measuring interval||10/30s, 1/10/12/15/30min, 1/3/6/12/24h|
|Operating time with battery||> 1 year|
|Data storage||16 MB, 3,200,000 measured values|
|LC-Display||3½” x 2½” (90 x 64mm)|
|Weight||8 oz. (250g)|
|Included in delivery||PC-Windows™- Software SmartGraph 3|
for graphic and numerical representation
of measured values / instruction manual
/ data cable / battery
|Storage rate||1/10/12/15/30min, 1/3/6/12/24h|
|Power supply||4 x LRG AA Mignon, USB, (POE opt.)|
|Measuring range||-4 to 144°F (-20…50°C)|
|Accuracy||±0.3°C (0…40°C), otherwise 0.5°C|
|Measuring range||10..95% RH|
|Measuring range||0…5000 ppm|
|Accuracy||±50 ppm + 3 measured values at 20°C|
|Long Term stability||20 ppm/s|