Honeywell W8600A1007 AirWatch Indicator
The Honeywell AirWatch Indicator has a selectable, battery-operated timer which beeps to remind homeowners when to change filters, UV lamps, and humidifier pads. It is easy to install, no wires to run or hook up.
The W8600A1007 function indicator panel has four liquid crystal display (LCD) arrow indicators that point to Battery, Air Cleaners, UV Air Treatment and Humidifier. The blinking arrrowheads indicate the devices that need service. It beeps whenever an arrow is blinking to alert you.