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: Blue,Steady L ED Module,Level 3: Red,One Circuit 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