Sensors
Most Home Automation Sensors are built into other systems. For example, window and door sensors come with home security systems.
This page is to list sensors that are useful in Home Automation and are not part of a larger system. I haven't started using sensors yet.
List of Sensors
Multi-Purpose Sensors: temperature, humidity, motion, and light
Leak Detector
Cellphone presence sensor - could be done with RPi (Bluetooth and Beacon)
Detect motion, temperature and light levels
Keen Home Smart Vent
Temperature Sensor
Grass and Garden Soil Sensors
Modes: Goodnight, Away, Exercise and Home Day, Home Night
Holiday Lights, Outdoor Switch Wi-Fi Smart Plug