Your browser is out-of-date !

update your browser to view this website correctly. Update my browser now


An eye-catching design in a classic, black-piano finish with matte black and black chrome accents.

With its attractive design and soft curves, LUX/ GEO has both brains and beauty. The large display, control wheel interface and free Android/ iOS App offers intuitive functionality both online and at the device. The LUX/GEO gives the user full control with easy to understand programing and built-in geofencing to automatically save energy when the user is out of the house.
UPC: 0 21079 15002 1
Dimensions width: 5.7" (145mm)
Dimensions height: 3.12" (79mm)
Dimensions depth: 1.32" (33mm)
7-day programmable – through the web, App or at the device

To learn more about the LUX/GEO, visit

GEO works with Amazon Alexa when powered by System/C-wire or
with the LUX power adapter kit (sold separately)

  • Works with Amazon Alexa*
  • Easy installation and WiFi connection
  • Easy to program from unit or with APP
  • Large, backlit display
  • Wheel control interface or smartphone App
  • 7-day programming
  • User option: 2 or 4 periods per day
  • 3 year warranty
  • Selectable fahrenheit/celsius setting
  • Adjustable temperature swing
  • Low battery detection
  • Air filter monitor
  • Adjustable temp swing (differential)
  • Adjustable 2nd stage heat offset
  • Wall plate included
  • Operates on 24VAC, 2-AA lithium batteries (included) or micro-USB (cable not included)
  • High and Low temperature alerts
  • Geofencing for automatic savings
  • Dual mount: vertical or horizontal
  • Finish: black with black chrome trim
  • Mercury free
  • Find rebates and other info:
For use on
  • Universal compatibility for conventional heat & A/C up to 2-stage heat/2-stage cool
  • Universal compatability for heat pumps with up to 2-stage heat/ 1-stage cool (including aux/emergency heat)
  • 2-wire heat only hydronic systems (hot water, baseboard and radiator)
  • Gas millivolt heaters
Not for use on
  • Heat pump with (Y2) two compressor stages
  • 3-wire heat only hydronic systems (hot water, baseboard & radiator)
  • Line voltage systems (120/240 VAC)

Print Friendly Spec Sheet
Additional Warning