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Senseair Air Quality, Refrigerant and CO2  Monitoring

Senseair logo
Blue Mountains NSW

Senseair specialises in solutions for a wide range of applications and industries including: 

  • Indoor air quality

  • Outdoor air quality

  • Demand Control of Ventilation (DCV)

  • CO2 Sensors and Controllers

  • CO2 monitoring in Schools

  • CO2 monitoring in offices

  • Refrigerant R290 sensor

  • Refrigerant R32 sensor

  • Automotive

  • Alcohol sensing

  • Life sciences

  • Safety in the workplace

  • Portable CO2 meters Aercast

Specialised sensors and controllers

CO2 Sensor and Controllers

OEM CO2 and Refrigerant Sensors 

The leader in air and gas sensing technology

Senseair is a leading global provider of indoor air quality (IAQ) sensors and ventilation control technology. Their focus is to make sense of air by providing the best possible measurement solutions, service and intelligence. The Senseair controllers interface to building controls via Modbus or BACnet in buildings and schools to optimise air quality and minimise operational costs.

Senseair have unique expertise in non-dispersive infra-red (NDIR) technology which sets them apart. Connected IoT is the Australian and New Zealand distributor of their products, providing installation, commissioning and maintenance support. 


Effective climate control with tSENSE

tSENSE is a versatile 3-in-1 transmitter combining all the necessary elements for effective climate control in commercial office buildings, hospitals, schools, and other facilities.


It measures carbon dioxide (CO2) concentration, temperature, and humidity in the ambient air accurately without the need for additional compensation - true read.

Interfaces to Building Management Systems (BMS) via Modbus or BACnet.

Complies with ASHRAE standard 189.1 (±50ppm @ 1,000ppm of measured CO₂ value).

tSENSE CO2 sensor and controler image

Key features

  • Maintenance free


  • Colour touch display that change colour at alarm limits 

  • PIN codes for access and settings

Demand control with aSENSE

aSENSE™ is an advanced transmitter for installation in office buildings and schools. It measures both CO₂ concentration and temperature. The data is transmitted to a BMS system or controller and can be configured with Senseair UIP Software. The unit is prepared for Modbus. Variations of this product are without display, wall or duct mounted. The ideal sensor for demand control of ventilation (DCV). A common application for aSENSE VAV Duct is controlling ventilation in rooms occupied by people. The sensor is flexible and designed to suit many different ventilation strategies. It is a key component for energy-effective, healthy climate control of rooms where occupancy varies, like schools, nurseries, cinemas, sports centres and libraries etc. The control of the ventilation is often based on temperature and carbon dioxide measurements. That can be combined with control of humidity to secure an optimal environment for the objects. 

CO2 sensor aSENSE with display image

Demand control with eSENSE

eSENSE is a CO2 transmitter for climate control. The unit is available both with and without display for fixed installation in  and helps you save money by decreasing your energy consumption of ventilation while creating a healthier indoor air climate. 

CO2 sensor eSENSE with display image
Aercast Air Quality monitor image

Aercast is a battery operated CO2, Temperature and Humidity meter that calculates an air quality index and display readings via colour coded LED indication the air quality from excellent to poor. The Bluetooth interface connects to smartphones for download of readings and set up of the device. Automatic or manual calibration of CO2 readings. It can be mounted on a wall or moved between rooms, fully portable no wiring required.

Aercast CO2 meter - IAQ Index


OEM CO2 sensors


CO2  sensing with Sunrise

Sunrise is miniature CO2   sensor module for battery powered applications. It provides full control over integration of the sensor into a host system and flexibility in changing co2   measurement period.  

It is the first NDIR sensor in the world with LED technology that truly saves power while maintaining high precision. 

SUNRISE CO2 low power oem module

Key features

  • Ultra-low power with average current < 150 micro amps

  • High precision with accuracy (CO2) +/- 30ppm

  • Self correcting calibration, so you can set and forget

K33 CO2 sensor for environmental monitoring
K30 CO2 sensor OEM platform

Senseair K30 carbon dioxide, CO2,  sensors can be customised for a variety of sensing and control applications. The platform is designed to be an OEM module for built-in applications in a host apparatus. K30 is a flexible product with two analogue outputs and two digital outputs that can be configured with Senseair Development Kit or other custom software. Variations include temperature, humidity, low power and fast response.

The Senseair K33 ICB platform can be customised for a variety of sensing, control, and alarm applications for Bio applications and high CO2 levels. This platform is designed to be an OEM module for built-in applications in a host apparatus.

Low Power CO2 sensor for battery operated devices Senseair LP8

Senseair LP8 is very compact sensor module which targets battery-powered applications. It provides a full control on sensor integration into a host system, flexibility in changing its configuration to further optimise power consumption. As an example a measurement requires only 3.6mC of charge equivalent to 11.9 mJ energy at 3.3V battery supply. The conserve battery the sensor is supposed to be switched off between measurements. Wide 2.9 to 5.5V supply voltage range enables long duty. The LP8 offer a communication protocol which allows customer changing measurement period and control Automatic Baseline Correction (ABC) period. Background- and zero calibrations are implemented as standard.

Why measure CO2

By using CO2 sensors for controlling and monitoring indoor levels of carbon dioxide inside building is important for everyone to consider for safety, health and even energy efficiency.

Too little or too much fresh air in a building can be a problem. How do we find the perfect balance between energy usage of ventilation and health and productivity levels affected by poor air quality, which also helps the spread of viruses. You will find ventilation controls in many residential, commercial, and government buildings.

Portable CO2 meters with Bluetooth wireless interface is a handy tool to decide indoor air quality in a building or school that may not have mechanical ventilation. 

Too much ventilation waste energy for heating or cooling. If levels of CO2 increase inside a school or office building, then people get tired and less productive.


Applications in food storage will slow down or increase ripening and at the high end of the scale keg rooms could be a work hazard it very high levels of CO2 in a confined space. 

Carbon dioxide is necessary for photosynthesis and essential for that reason very important for the growth of plants. CO₂ monitoring in green houses can optimise the growing period and increase yield. Different plants need different levels of CO₂ for best possible growth and development.

Low Power Refrigerant R290 and R32 sensors for battery operated devices Senseair Sunlight

Senseair Sunlight R290 is a solid-state design that makes it robust and resistant to vibrations, making it ideal for applications in tough environments or those with explosion risks. It is the first NDIR sensor with LED technology that saves power while maintaining high precision. Senseair Sunlight Propane is designed for high volume production with full traceability by sensor serial number on all manufacturing processes and key components. It is individually calibrated and provided with UART (Modbus) and I2C interface, making it maintenance-free with the ABC function activated.

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