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There is a new version of this product: Honeywell 5800FLOOD
Honeywell Ademco 5821 Wireless Temperature Sensor
Description Wireless Temperature Sensor & Flood Detector, a versatile wireless device that can use different configurations Honeywell's 5821 is a versatile wireless device that can be configured to operate as either a standalone temperature sensor and/ or a remote temperature sensor or flood detector. It is ideally suited for a wide range of applications including bathrooms, laundry rooms and basements.