Installation & Maintenance InstructionsUltima® OPIR-5Infrared Open Path Detector for Hydrocarbon Gas ApplicationsReadingTel: +44 (0)118 9311188 | Email: info@able.co.ukAberdeenTel: +44 (0)1224 725999 | Email: ab@able.co.ukRegistered AddressABLE Instruments & Controls LtdCutbush Park, Danehill, Lower Earley,Reading, Berkshire, RG6 4UT. UK.Webable.co.ukE-commerce247able.com