This Truth Hardware Remote Control allows for the control of multiple openings with one transmitter. Unlimited windows can be grouped into one 'unit' for opening and closing at once. It can also be used to group windows and skylights for a ventilation setting to create a 'chimney effect'. The transmitter has an integrated thermostat for applications that need temperature control of skylights or windows and the thermostat will display in Fahrenheit or Celsius. This Truth Hardware Remote Control will allow you to program the transmitter with the temperature you want the windows or skylights to open and place the remote in the area you would like to monitor. It uses 3 "AAA" batteries. Has a built in battery monitor. Maximum range: 50 ft (15.25 m)

PLEASE NOTE : 

Non-Returnable Item