ActronAir QUE Sense Zone Sensor Black provides zone temperature sensing for QUE Platinum residential ducted systems, with wired or wireless RF (915MHz) operation, more than 2 years battery life on 2 x AAA batteries, and OTA updates via the QTW-1000 QUE Touch master controller. The QSB-10 controls multiple zones from a single location and provides temperature feedback to the QTW-1000 for zoned comfort management. Low voltage inputs only -- connecting 240VAC will damage equipment.