Source1 S1-THEH21P5S Programmable Thermostat Safety Warnings P/N S1-THEH21P5S CAUTION The two Alkaline “AA” batteries must be replaced at least once…
Source1 S1-THEH21P5S Programmable Thermostat CAUTION The two Alkaline “AA” batteries must be replaced at least once every 12 months to…