How do I go about changing the batteries in my Noma thermostat

NOMA is terrible for on line help.

See if you can find your unit here, you may need to contact Canadian Tire for help.

Programmable Thermostat, Heating, Cooling | Canadian Tire (http://www.canadiantire.ca/AST/browse/3/HouseHome/2/Electrical/ProgThermostats.jsp)