Lx" Series Indoor/Outdoor Temp Sensor"

Lx Series Indoor/Outdoor Temp Sensor,Automatic Remote Sensor Averaging When Using More Than One Sensor, Can Be Used Outdoors As A Temperature Sensor,Can Link Up To 4 Thermostat, Thermostat Requires Optional Rf Module S1-Lxrfm To Operate(Sold Separately), Compatible With These Thermostat: S1-Thsu21P1,S1-Thsu32P7,S1-Thsu21Hp7,S1-Tbsu22Hn,S1-Tbsu32P7, And S1-Tbsu32Hp7,Made In China