Products

S9 CO₂ 2%

Senseair S9 2% is an IP65, industrial-grade NDIR CO₂ sensor for reliable measurement up to 20 000 ppm. It is designed for equipment where CO₂ levels, ventilation and process conditions need to be monitored in environments with dust, moisture, cleaning routines and demanding operating conditions.

Built for engineers developing poultry systems, incubators, greenhouse control equipment and industrial air-quality products, S9 2% brings field-proven CO₂ measurement into a rugged and practical sensor format. A linear analogue output, wide supply voltage and compact cylindrical design make it straightforward to integrate into control and monitoring systems.

Defining attributes

IP65 rated, heat & water resistant
0–20 000 ppm CO₂ measurement range
Designed for harsh environments
Removable protective cover
Individually calibrated sensors
High volume production

In hatchers and incubators, CO₂ measurement supports the gas balance around embryo development and incubation cycles. In poultry houses and industrial spaces, it helps ventilation systems respond to changing air quality. In greenhouses, it supports CO₂ enrichment control where concentration stability has a direct impact on growing conditions.

With individually calibrated sensors, long-term stability and a removable protective cover, S9 2% gives OEMs a dependable way to add CO₂ monitoring where standard indoor sensors are not built to last. Reliable measurement, practical integration and Senseair Signature Performance in a format made for harsher environments.

Article number	099-16-0004
Operating principle	Non-dispersive infrared (NDIR)
Measured gas	CO₂
Measurement range	0–20 000 ppm
Accuracy	±300 ppm ±3% of reading
Operating range RH	<95 % RH
Operation range °C	<50 °C
Warm-up time	<60 s
Response time	<60 s
Power supply	15 - 30 V
Communication
Outputs	Linear analogue output
Maintenance	Periodical calibration
Life expectancy	>10 years
Dimensions	38 x 38 x 46 mm (L x W x H)¹
Storage conditions	-40–60 °C
Average power consumption	<1 W

Without connector

Product Sheet & Specification

S9 CO₂ 2% Product Specification

Product Compliance

What is Senseair S9 2%?

Senseair S9 2% is an industrial-grade IP65 NDIR CO₂ sensor for measuring carbon dioxide up to 20 000 ppm. It is designed for harsh environments where reliable CO₂ monitoring needs to be integrated into equipment or control systems.

What applications is S9 2% designed for?

S9 2% is designed for poultry farming, incubators, industrial applications and greenhouses. It is especially relevant for engineers building products where CO₂ measurement must work around dust, moisture, ventilation changes and demanding operating conditions.

Why use S9 2% in incubators and hatchers?

Incubators and hatchers need controlled gas balance throughout the incubation process. S9 2% provides reliable higher-range CO₂ measurement in a rugged format suitable for integration into incubation and hatching equipment.

Why use S9 2% in greenhouses?

Greenhouses often use CO₂ enrichment to support plant growth. S9 2% measures up to 20 000 ppm, making it suitable for control systems where elevated CO₂ levels need to be monitored reliably.

What makes S9 2% suitable for harsh environments?

S9 2% has an IP65-rated housing with protective cover, industrial-grade NDIR technology, long life expectancy and a rugged format for applications where standard indoor CO₂ sensors are not enough.

What output does S9 2% use?

S9 2% uses a linear analogue output from 0–5 VDC, corresponding to 0–20 000 ppm CO₂. This makes it straightforward to integrate into control systems, PLCs and monitoring equipment.

Does S9 2% require maintenance?

S9 2% requires periodical zero calibration. The protective cover should be used during cleaning, and the filter must not be cleaned. If the filter is compromised, the sensor must be replaced.