Occupancy Sensing

The foundation of every home automation system


Why occupancy sensing?

Smart building automation is gathering real momentum in both home and commercial markets, offering increased levels of occupant comfort, security, and energy efficiency.  With global energy demands rising inexorably and power companies struggling to meet them, energy saving strategies are taking centre stage.

Using occupancy sensing to automatically turn off task lighting and electrical appliances when they’re not being used by building occupants achieves more though than just conserve power and cut energy bills, it helps to reduce carbon emissions, and prolong the life span of all kinds of equipment.

Respiration Monitoring Illustration

What is occupancy sensing?

Reliable and accurate occupancy sensing has long been the foundation of the smart-automated home or office.  Occupancy sensors detect whether an indoor space is being used by someone or not and is programmed to automatically turn electrical systems on or off, such as lighting, heating, ventilation and other equipment.

The majority of existing occupancy sensing solutions however fail to detect stationary occupants and have high rates of false tripping.

To be reliable, occupancy sensors need to be sensitive enough to detect even the slightest human movement; the breathing chest of someone sleeping, the heartbeat of a person sitting still.


Potential applications for occupancy sensing

The XeThru high-sensitivity occupancy sensing solution is ready to integrate into a wide range of smart building applications

Light Control

Light control

In a smart home setting, occupancy sensors are placed around the house to detect human presence and automate lighting control. Room lights can be automatically turned on and kept on as long as the sensor detects human presence.  Such an application helps reduce domestic energy bills and increase comfort in the home.

HVAC Control

HVAC Control

Through home automation, HVAC systems can also be controlled and set to turn on once the sensor detects presence in the room. HVAC automation increases user comfort, contributes to energy cost savings, and helps in making houses more “green”.

Evacuation Monitoring

Evacuation Monitoring

Sensors can be used in smart building monitoring applications and more specifically in an emergency setting. They can detect which rooms are occupied, allowing emergency services the possibility of carrying out a quicker and safer evacuation.



In a museum or art gallery setting, a sensor can be placed behind valuable pieces of art to startle the too-close observer with a warning, or trigger an alarm if it detects the lightest finger tap. While all museums employ a variety of security precautions, these sensors give “museum security” the ability to safeguard collections at all times, avoid potential damage, and art theft.


The XeThru occupancy sensing solution

The X4M300 presence sensor detects all human presence by sensing all major and minor human movements in a room. With its optimised sensitivity feature, it offers detection at a range of up to 9.4 metres.


Key occupancy sensing capabilities:

Extremely low emission levels.
100% safe

Extreme sensitivity to minor human movement, even a person's breathing.

Non-invasive to daily life. It is not a camera.

Can be hidden,  mounted inside a wall or ceiling

Highly accurate range measurement

Classification of human movement, can recognise respiration

No recalibration, no lenses, no sensitivity to dust or dirt – long lifetime

Sees-through materials such as clothe, blankets, soft furnishings and furniture - it suits real-life scenarios

Respiration Module

There are so many opportunities to use the X4M300 occupancy sensor.  Buy yours today and start prototyping your next product.

Buy now