Discover our range of fixed gas detection systems for commercial and industrial applications. Our systems are designed to alert workers to potential dangers including toxic gas exposure, gas leaks, rising Carbon monoxide levels, oxygen depletion/enrichment or an explosive risk caused by the presence of combustible gases. Browse online for fixed gas detection systems components, book a free site impartial survey or get a quote for your new or existing fixed gas system. Shawcity is a UK leader in the installation of Fixed Gas Detection Systems, working across the whole of the UK and supporting all industries.