... - 4 way input ISO9001:2000 certificate Gas alarm system KS-3000 is applied to continuously inspect the ... collection, calculation, failure inspection for the system and detector, display driver, alarm indication, alarm interlink output, etc;• LED display ... OutputPassive relay output (AC 220V, 2A resistive load)Power SupplyAC 220VTransmission Distance1000mControlling Points1~4 (depending on user’s ...