How to stop lights being left one. Replace the wall switch with a PIR! A ready to install solution to people leaving the lights on - replace the switch with a Movement
Motion Sensor Light Switch using CD4017 & IR sensor with Circuit
Types of Motion Sensor Lights: Your Complete Guide
White PIR Motion Activated Occupancy Sensor Light Switch Replacement
TOPGREENER In-Wall PIR Motion Sensor | $16.69
PIR motion sensor with twilight switch 180° max. 400 Watt black IP44 - HOFTRONIC
GE Motion-Sensing Switch with Automatic Shut-Off Feature, White 11927 - The Home Depot