Elevator button BR BS34A AK-29B

BR34A red light

LG(AK-29B)red light

BS34A orange light 3-line

BS34A blue light 3-line

BS34A white light 3-line

BS34A red light 3-line

BS34A orange light 4-line

BS34A blue light 4-line

BS34A white light 4-line

BS34A red light 4-line

stay button symbol