70 mm Stack Light, 0.5 in. NPT Base, Black Housing, 24V AC/DC, Steady LED Module, Level 1: Green, Steady LED Module, Level 2: Amber, Steady LED Module, Level 3: Red, Transducer Sounder Top, Level 4: None Sound Only, No Level 5 Module, No Level 5 Color, No Level 6 Module, No Leve l 6 Color, No Level 7 Module, No Level 7 Color, IO Link