![CDATA[Capacitive polycarbonate button with customizable symbols. Choice of 1, 2, 4, 6 or 8 buttons with backlit icons whose brightness adapts to the ambient lighting. Has a proximity sensor. Tecla has an integrated temperature sensor and thermostat function, 2 analog/digital inputs for potential-free sensors, temperature sensors or motion detectors. Optional accessories: temperature sensors and motion detectors.]]>