CO2 sensor for schools | CO2 traffic light

starting at 187,25 €
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CO2 sensor for schools | CO2 traffic light AERASGARD® RCO2-AS
Maintenance-free room sensor AERASGARD® RCO2-AS xx with traffic-light indicator and acoustic signal, self-calibrating, in an attractive plastic housing, for determining the CO2 content of the room air (0...3000 ppm). The measuring transducer converts the measurand to a standard signal, which is directly presented visually via coloured LEDs (traffic light indicator). An additional signal tone sounds when the warning levels are reached (can be switched off via DIP switch).
Available as a table-top unit RCO2-AS NT ST with micro USB power cord and stainless steel stand holder, as well as the device versions RCO2-AS NT (with plug-in power supply unit), RCO2-AS UPNT (with in-wall power supply unit) and RCO2-AS (without power supply unit) for wall mounting. The room filter with CO2 traffic light is used in classrooms, training rooms and convention centres, offices, hotels, apartments, shops, etc. and is used for easy and quick evaluation of the indoor climate. This enables energy-saving demand-based room ventilation, thereby reducing operating costs and improving well-being. We recommend one sensor for every 30 m² of space. The CO2 measurement is performed using an optical NDIR sensor (non-dispersive infra-red technology)
Technical details
Measuring range, CO2
Measuring accuracy
typically ± 30 ppm ± 3 % of measured value
Temperature dependence, CO2
± 5 ppm/ °C or ± 0.5 % of measured value/ °C
(whichever is higher)
Pressure dependence
± 0,13 %/ mm Hg
Gas exchange
by diffusion
Warm up time
approx. 1 hour
Response time
< 2 minutes
Connection type
2-wire circuit (no reverse polarity protection!)
0...+50 °C
plastic, material ABS,
colour pure white (similar to RAL 9010)
Optical NDIR sensor (non-dispersive infra-red technology),
with manual calibration (via zero button),
with automatic calibration (can be deactivated via DIP switches)
85 x 85 x 27 mm (Baldur 1)
Long-term stability
< 2 % in 15 years
Protection class
III (according to EN 60 730)
Protection type
IP 30 (according to EN 60 529)
CE conformity, electromagnetic compatibility
according to EN 61 326, EMC Directive 2014/ 30/ EU,
Low Voltage Directive 2014/ 35/ EU
wall mounting or on in-wall flush box, Ø 55 mm,
base with 4 holes, for attachment to vertically or
horizontally installed in-wall flush boxes for rear cable entry,
with predetermined breaking point for cable entry
from top/ bottom in case of plain on-wall installation
traffic light indicator (five coloured LEDs)
acoustic signal (signal can be switched off for displaying the CO2 concentration