Sensors and Transducers

Geiger Counter Tubes - Primary radioactivity detector	Humidity Sensor
Flexible Stretch Sensors - Variable resistance stretch sensor	Photoresistors - CdS
	Solar Cells - Photovoltaic Cells
Pressure and Force Sensors - Measure's forces	Piezoelectric Film Sensors - Vibration/impact detection
Electronic Compass	Piezoelectric Switches - momentary pulse switches
Tilt Switches - Mercury/glass tilt switch	Gas Sensor - Toxic Gas Sensor