Cover for KNX temperature controller and room controller Q.1/Q.3 aluminum velvet, painted. Cover for KNX room controller with display and integrated bus coupler - for KNX temperature controller with display and integrated bus coupler. Flush-mounted installation. Material: plastic, thermoplastic, shatterproof, halogen-free. Cover for KNX room controller with display and integrated bus coupler - for KNX temperature controller with display and integrated bus coupler. Flush-mounted installation. Material: plastic, thermoplastic, shatterproof, halogen-free.