Honeywell C7189R1004/U Wireless Temperature and Humidity Sensor, 35 to 114 deg F, Wall Mounting
The Remote Indoor Temperature Sensor is used to sense temperature remotely.
Honeywell Wireless Temperature and Humidity Sensor, 35 to 114 deg F, 5 to 90% RH Non-Condensing Humidity, Wall Mounting, Arctic White, 1-7/8 in W x 15/16 in D x 2-7/8 in H Dimensions, For Use With: Redesigned Prestige IAQ, Prestige IAQ 2.0, Prestige 2.0 and All New RedLINK™ VisionPRO 8000 Thermostats