PIR & Motion Sensor
PIR & Motion Sensor
Introduction Solar power systems are becoming common, and they can interfere with PIR sensors in two ways: thermal radiation from hot panels and electrical noise from inverters. Two Types of Interference 1. Thermal Radiation from Panels Solar panels get hot…
Introduction High humidity environments like bathrooms, greenhouses, and tropical locations can cause PIR sensors to malfunction. Moisture in the air and on the lens interferes with infrared transmission. How Humidity Affects PIR Sensors 1. Water Vapor Absorption Water vapor absorbs…
Introduction Hot water pipes running behind walls or ceilings can cause PIR sensors to false-trigger. When hot water flows, the pipe warms up, creating a moving heat source that the sensor may detect. Why Water Pipes Cause False Triggers When…
February 2026 – NHTSA Finalizes Child Presence Detection Rule The National Highway Traffic Safety Administration (NHTSA) has finalized regulations requiring all new passenger vehicles weighing less than 10,000 pounds to include child presence detection systems by the 2028 model year.…
February 2026 – MIT Graphene Research Could Transform PIR Sensors A research team at MIT has demonstrated a graphene-based pyroelectric sensor with sensitivity approximately 100 times higher than conventional lithium tantalate or PZT-based sensors. The breakthrough, published in Nature Photonics,…
February 2026 – Nest Learning Thermostat (4th Gen) Features PIR Occupancy Google has unveiled the 4th generation Nest Learning Thermostat, featuring an integrated ultra-low power PIR sensor for accurate room occupancy detection. This marks a significant upgrade from previous models…
February 2026 – InfraTec Digitalizes Pyroelectric Detection InfraTec, a leading manufacturer of infrared detectors, has announced a new series of digital pyroelectric detectors featuring an integrated I2C interface. The LIE-700 Digital series brings programmability and smart features to pyroelectric sensing.…
February 2026 – Murata Targets Wearables with Miniature SMD PIR Sensors Murata has announced an expansion of its pyroelectric infrared sensor lineup with new surface-mount device (SMD) packages designed for compact and wearable applications. The new sensors maintain the performance…
January 2026 – New International Standard for Occupancy Sensors Published The International Electrotechnical Commission (IEC) has published IEC 63180:2026, the latest revision of the standard for “Methods of measurement and performance criteria for occupancy sensors”. This update introduces new test…
February 2026 – Matter 1.4 Specification Released The Connectivity Standards Alliance (CSA) has released Matter 1.4, the latest version of the smart home interoperability standard. This release includes significant enhancements to occupancy sensing, making it easier for PIR sensor manufacturers…