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Senseair S8 LP
Document: PSH1944 Rev: 13
Standard specication
Measured gas Carbon dioxide (CO
2
)
Operating Principle Non-dispersive infrared
(NDIR)
Measurement range CO
2
400 – 2000 ppm
Accuracy CO
2
±40 ppm ±3% of reading
1, 2
Maintenance No maintenance required
Life expectancy >15 years
Power supply 4.5 – 5.25 V DC
Operation temperature range 0 – 50 °C
Communication UART (Modbus)
Dimensions 33.9 x 19.8 x 8.7 mm
with pin headers (optional) 33.9 x 19.8 x 9.3 mm
Power consumption 300 mA peak
18 mA average
Response time 2 minutes by 90%
Senseair S8 LP
A very small, versatile and
mass-producible CO
2
transmitter module
More than 25 years experience of research and
development within the eld of infrared gas sensing has
now brought us the smallest CO2 sensor, with NDIR-
technique, in the world – Senseair S8 LP. The new sensor
has excellent performance such as high accuracy and
low power consumption. Senseair S8 LP is designed for
high volume production with full traceability by sensor
serial number on all manufacturing processes and key
components. Every sensor is individually calibrated and
is provided with UART digital interface. The sensor is
maintenance-free and has an estimated life time of more
than 15 years.
Senseair S8 LP is a module that is designed for simple
integration into products. Senseair S8 LP can be used
in a wide range of applications such as in ventilation
control to improve energy savings and to assure a good
indoor climate. Other elds of use are personal safety
and measurements to increase process yield and to
increase economic value in bio-related processes.
Key benets
• Miniature size
• Individually calibrated
• Maintenance-free
• Long term stability
• Low power consumption
Note 1: In normal IAQ applications. Accuracy is dened after minimum three (3)
ABC periods of continuous operation with ABC on.
Note 2: Accuracy is specied over operating temperature range. Specication is referenced
to certied calibration mixtures. Uncertainty of calibration gas mixtures (±1%
currently) is to be added to the specied accuracy for absolute measurements.