Not just a sensor, but a "magic" switch that eliminates physical contact. This is the core feature of the SRK-in switch: a microwave detector that represents a smart solution for those seeking a contactless activation system. It blends perfectly into the aesthetics of any environment and is designed to be installed inside a standard three-module junction box.
In the era of smart homes and peak hygiene, SRK-in is engineered to replace or complement traditional physical buttons. No pressing, touching, or pushing required: it activates with a simple hand gesture toward the sensor to send a command. Its detection range is adjustable from 0.3 to 1.2 meters.
Thanks to microwave technology, SRK-in detects hand movement from a distance. This makes it ideal for installation in:

The SRK-in design is engineered to house the electronics within a standard 3-module recessed box (the common "503" type) with a quick-snap cover:
Perfect for both residential and industrial sectors to modernize existing systems without complications.

SRK-in is a versatile device that can be used to activate:
Since every environment is unique, the detection range and relay command duration are easily adjustable.

Learn more about the features of APRO SRK (enter ››).