LUX Products engineers and tests its products for the highest quality, worry-free performance. However, variations in battery quality could impact the performance of your LUX thermostat.
For thermostats that require batteries to operate, failure orsub-standard performance of the batteries may impair or prevent the correct operation of the thermostat. Use Duracel or Energizer alkaline batteries only for all LUX thermostats requiring batteries. The only exception is the LUX/GEO. If powering the LUX/GEO with batteries, be sure to use lithium batteries only. Be sure to change all batteries at least once a year.