... If All cordless director Trigger Input. Send text = wireless Activated. HOW TO USE THE ALARM BASE? 1). ... you can use O1 and other circuit to control home electrical apparatus, such as lamp, cooker, and air ... you can use O2 and other circuit to control home electrical apparatus, such as lamp, cooker, and ... you can use O3 and other circuit to control home electrical apparatus, such as lamp, cooker, and ...