Sensor

Capacitive proximity sensor

PS-12 Proximity Sensor - Monarch Instrument

RS PRO Retroreflective Photoelectric Sensor, Barrel Sensor, 50 mm → 7 m Detection Range

Self-powered sensor automatically harvests magnetic energy, MIT News

TRÅDFRI wireless motion sensor, smart white - IKEA

Features of Inductive Proximity Sensors, Sensor Basics: Introductory Guide to Sensors

Retro-Reflex Sensor Universal XR96PCT2

Sensors, Free Full-Text

PS-12 Proximity Sensor - Monarch Instrument