Multi-circuit OFF Switcher Relay 120 V Features ?Switches OFF when sense cord is powered ?Used to inhibit CO2, dehumidifier and/or other equipment on another power circuit while venting or other process is in progress ?120 V, 15 A, 2 HP load capacity ?CSA/UL compliant Control the temperature or humidity with highest priority and CO2 enrichment ) Plug a 120 V power strip in the outlet of a PLUG’N’GROW temperature or humidity controller (iGS-020, iGS-021, iGS-030, iGS-040 or iGS-110) and plug the temperature or humidity equipment and the iLS120-OFF sense cord in the power strip. Plug the iLS120-OFF in a 120V separate circuit and plug a CO2 controller (iGS-061 or iGS-100) in the iLS120-OFF outlet and plug CO2 enrichment device in CO2 controller outlet.