Emerson Mechanical Heat Only Thermostat, 1C20-102

Designed to work with single-stage heating systems only is the Emerson 1C20-102 thermostat. It is mercury free and has snap action contacts and a temperature range of 50-90 degrees F. It's easy to operate and has low voltage mechanics.|Mercury-free mechanical thermostat|For use on single-stage heat only systems|Features rugged snap-action contacts, adjustable heat anticipator and bimetal thermometer|Terminals: R, W