The Pressac Sensing Under Desk PIR Sensor is designed to be mounted on the underside of a desk to detect desk occupancy.


The sensor should be mounted towards the rear of the desk with the aperture in the PIR shield facing the detection location. A mounting cradle and screws are provided for permanent installation, along with two sticky pads for temporary installations.

Please Note Do not use the cradle for temporary installations.


The angle of detection is approximately 41° from the top curved face of the PIR and the aperture hole is 180° wide, based on a 600mm high desk the detection range is a 500mm radius semi-circle at floor level. The learn button is located behind the small hole in the front of the device, a tool to press this button is supplied with the mounting kit.