Hydro-Rain HRC-300-12-NA 12 Station Indoor Controller

Hi there! Thank you for your query concerning the Honeywell TH1210DH1001 thermostat. To change the temperature settings you will need to press and hold the ▲ and ▼ buttons until the display changes then press ▲ or ▼ to adjust the temperature. For your visual reference, please check out this operation manual. We hope this information proves helpful. Thank you for visiting us here at PlumbersStock. Have a great day!

Hi! Thank you for your inquiry about the Honeywell TH1210DH1001 thermostats. To change the batteries, turn the thermostat over and insert two fresh AAA alkaline batteries when "Lo Batt" flashes on the screen. You can then reinstall the thermostat after that. We hope this information helps. Thank you for choosing PlumbersStock. Have a nice day and happy shopping!