The Winland EAPro WHS is a standalone wireless humidity sensor built to work with the EnviroAlert Professional Gateway, monitoring ambient room humidity from 5 to 95% relative humidity in non-condensing environments. It is fully supervised for both communication drop-out and low-battery condition, transmitting on a roughly 30-second interval and flagging an RF disconnect within about 3.5 minutes. It mounts via surface mount and is intended for indoor, non-condensing spaces rather than coolers or freezers. Humidity high and low set points are configured and can be updated remotely through Winland's INSIGHT application via the EAPro Gateway.