Faradite designs ultra-low-profile keypads and micro motion sensors, including the solid-brass TAP-5 ORE range. Pricing on request:

solid brass, precision-machined · metallic finishes
ultra-low-profile · standard finishes
micro motion · volt-free & KNX
Prices are indicative, retail, ex VAT, and subject to a project quote. Ranges span common channel counts — the right choice depends on the design.