Wired Indoor Remote Sensor
    Accessory for the T755S, T855SH and T855iSH

    Simple. Affordable. Professional.

     Operating temperature          
    32˚F to 105˚F (0˚C to 41˚C)
    Operating humidity 90% non-condensing maximum
    Dimensions of sensor 1.5"W x 2.75"H x 0.75"D
    Resistance range Up to 300 feet
    • Move sensing location away from thermostat

    • Use up to 16 sensors for averaging

    • Compatible with the T755S, T855S and T955S


    R251S Installation Manual

    R251S Submital Sheet

    Pro1 Linecard

    Pro1 Line Card