Resideo (Honeywell Home) TH1110D 2009 24V digital thermostat is OBSOLETE
Resideo (Honeywell Home) TH1110D 2009 T1 Pro digital thermostat, 24V single-stage heating and cooling applications and heat pumps without auxilliary heat, non-programmable, 32-90F, backlit display; replaces TH3110D1008 is obsolete. It is replaced by Honeywell TH1110U4000.
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This is an official Resideo (Honeywell Home) replacement part
Honeywell TH1110D 2009 T1 Pro digital thermostat, 24V single-stage heating and cooling applications and heat pumps without auxilliary heat, non-programmable, 32-90F, backlit display; replaces TH3110D1008