Item No: 8120-21

Opus 20 Datalogger for Temp, RH, CO2 POE

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Product Description

Opus 20 Datalogger for Temp, RH, CO2 POE
Lufft offers a variety of models with internal or external sensors for recording humidity, temperature, pressure and CO2.

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.

  • Economically priced
  • Comes with SmartGraph 3 software, connecting cable and manual— everything needed to record and download 
  • NIST Certification and antitheft wall-mounting device optional 
  • POE (power over ethernet), USB, RS232 options on each model

The Lufft I Box: Create an email alert from your Opus 20 to your smartphone: Link Here.


Specifications and additional product information
OPUS 20 Temperature/RH/ CO2 Item# 8120-20  
OPUS 20 Temperature/ RH/
Item# 8120-21 
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
Construction Plastic housing
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
Interface USB, LAN
Storage rate 1/10/12/15/30min, 1/3/6/12/24h
Power supply 4 x LRG AA Mignon, USB, (POE opt.)
Principle NTC
Measuring range -4 to 144°F (-20...50°C)
Accuracy ±0.3°C (0...40°C), otherwise 0.5°C
Resolution 0.1°C
Relative humidity
Principle capacitive
Measuring range 10..95% RH
Accuracy ±2% RH
Resolution 0.5% RH
Principle NDIR
Measuring range 0...5000 ppm
Accuracy ±50 ppm + 3 measured values at 20°C
Resolution 1 ppm
Long Term stability 20 ppm/s
Download the PDF brochure for more infoAbbeon Instruments Brochure, 16 page