GSE DH1 Detectahead aerosol dispenser designed for smoke and CO alarm detector testing at height. Versatile compatibility: the DH1 is compatible with a variety of smoke aerosols and telescopic poles available on the market and offering flexibility for diverse testing needs + GSE DCA1 DetectaCup Ajax aerosol dispenser designed for AJAX FireProtect 2 and AJAX EN54 smoke and CO alarm detector testing at height. The DetectaCup Ajax can be fitted into the GSE DH1 Detectahead