Put the Heat on Crime with PIR Motion & Heat Sensor Cameras – New from Swann


Last Updated on 25 March 2019

Introducing New True Detect™ Security Systems 

Swann’s new True Detect™ heat-based thermal sensing PIR motion detection is designed to reliably capture activity, with fewer false triggers. The PIR (Passive Infrared) motion sensors are designed for security & optimised to reliably detect people, large pets & other large warm moving objects. This means – security cameras smart enough to detect humans rather than sheets blowing in the wind.

What’s New? PIR-Based Motion Detection Recording

With more accurate motion detection you get more reliable notifications & recording by eliminating false triggers due to bugs, falling leaves, rain & more, saving you HDD space & playback time.

True Detect is a step up from the traditional motion detection technology. The camera has a PIR sensor, the same technology used in alarm systems, to detect moving heat-generating objects, such as people, large animals & cars, to trigger recording and alerts.

True Detect eliminates false triggers from traditional motion detection, such as falling leaves, small birds & plants moving with the wind.

Swann True Detect

Pixel Motion Detecting Cameras vs PIR Motion Detecting Cameras

On the scenario below you can see how the Pixel Motion Detection tends to generate false triggers because motion is detected by means of a change of pixels.

With PIR Motion Detection Cameras, movement means the detection of a warm moving object within the image, optimized for humans, on both temperature range and size. PIR detection range is 10m (32ft).

This DVR combines both technologies: for Recording or Push Notifications both PIR Detection and Pixel Detection must be “true” to ensure maximum reliability in recording and notification.

Swann True Detect Before & After 2 Swann True Detect Before & After

Heat or Thermal? That’s the question

PIR cameras don’t detect or measure “heat”. PIRs detect emitted/reflected infrared radiation. The word “heat” may create expectation cameras will capture any heat source, like fire or light bulbs. As it is not technically correct to use the phrase ‘heat detection’, look for the words ‘Thermal Sensing’ on Swann packaging, our website and marketing materials to choose products with True Detect technology.

PIR Detection: What to Expect

In general terms, we can expect the PIR thermal & motion sensor cameras to detect thermal radiation from human-sized and larger subjects within a human temperature range, and it should not detect smaller subjects, such as cats or birds.

Swann True Detect Heat & Motion Sensor

The security systems available in Australia now start with 4 and 8 channel systems, each with 4 PIR security cameras.