Living objects with a body temperature above 0°C emit heat as infrared radiation, also known as thermal radiation, which is invisible to the human eye. PIR sensors, designed for this purpose, can ...

A year ago [Lochie] bought an Airwick automatic air freshener, and while he thought it was a cool gadget, the freshening spray and the novelty ran out in short order. The device collected dust in his ...

Hi - Was hoping someone could clarify my wiring here is correct. Replaced an Arrowhead ESL2 board which has Swan Quad PIR sensors with a Paradox MG5050. Everything remained apart from the board switch ...

NEW YORK--(BUSINESS WIRE)--Aqara, a leading provider of smart home products, announced the launch of its new Motion Sensor P1, an updated model of the best-selling Aqara Motion Sensor. The sensor is a ...