CAPTRON KV-291-PS3 Capacitive Sensor Switches CHT9

The CAPTRON KV-291-PS3 Capacitive SENSORswitches CHT9 are ultra-thin capacitive touch switches designed for adhesive mounting on flat surfaces such as glass or metal, enabling screw-free installation in clean, modern interiors. Activation is capacitive and requires no physical actuation force, making touch control possible on doors, panels, or control surfaces; a finger near the surface triggers the switch. The CHT9 family provides feedback through optical, acoustic, or tactile cues via vibration, and offers accessibility options with Braille or raised symbols around the outer ring. For hygiene-critical environments, CAPTRON offers the CHT9-G Hygienic version that can be mounted on supports and sealed with silicone to achieve a high level of cleanliness. The sensors are used across traffic engineering, building technology, and automation applications and are built for long service life, with millions of actuation cycles expected. Certifications available for the family include EN 45545 and EN 50155, underscoring reliability in challenging settings. The switch surface is commonly polycarbonate, contributing to durability on exposed surfaces while maintaining a slim profile that integrates discretely into contemporary installations.