The FBI T280R is a remote probe designed for use with the T280 sensor. This two-wire probe is both weather and water resistant. Also known as -Fire Burglary Instruments TEMP PROBE REM T280/ TS300/ 5821 - FB-T280RMain FeaturesMounting SpecificationsTemperature DetectionWater-ResistantGeneral InformationName: Honeywell Home T280R Remote Temperature Probe, Resideo, Honeywell HomeCategory: Honeywell Home, Intrusion, Environmental Sensors, Temperature SensorsUPC Code: 781410005365Country of Origin: United States. Country of origin is subject to change.