We also use these cookies to know how clients use our products and services (one example is, by measuring web site visits) so we will make enhancements. Dr Zzeus Q&A: If fire alarm indicator units will not meet the essential benchmarks, may be the process compliant? Design Harmony: Striking a https://www.firesense.co.uk/type/conventional-fire-system/conventional-sounders-vids-vads/