Controllers Compatible with Model 5509e
5024 Controller- supports up to 4 Ionizers
5024 Controller with Alarm- supports up to 20 Ionizers
5024 Controller with Audible Alarm- supports up to 20 Ionizers
5084 Controller with Alarm- supports up to 80 Ionizers
Controllers Compatible with Model 5511
5520 Digital Controller- supports up to 20 Ionizers
5580 Digital Controller- supports up to 80 Ionizers
5570 Handheld Infrared Remote
Controllers Compatible with Model 5512
5024 Controller- supports up to 4 Ionizers
5024 Controller with Alarm- supports up to 20 Ionizers
5024 Controller with Audible Alarm- supports up to 20 Ionizers
5084 Controller with Alarm- supports up to 80 Ionizers
5570 Handheld Infrared Remote