Honeywell T822L1000 is a non programmable mercury free cool only thermostat for single stage low voltage system. Honeywell T822L1000 Cool Only Thermostat for Single Stage Low Voltage Systems is a user friendly device that provides 24 Vac controls of heating or cooling systems. It has a vented cover for improved temperature sensing. Honeywell T822L1000 Cool Only Thermostat for Single Stage Low Voltage Systems has a setting lever and thermometer scale on thermostat face. This Cool Only Thermostat Mounts directly on the wall or on vertical outlet box. Honeywell is recognized for its Global Presence. Honeywell was known for its Leadership, invention and manufacturing technologies. Honeywell Company has its core in business that drives efficiency and service quality. They have the world class products and services and solutions, that works in 150 million homes, 10 million buildings, and hundreds of gas and electric utilities worldwide. They have the engineering and technology that are top winners in the world of globalization. Honeywell is also the global leader in HVAC (heating, Ventilation, Air Conditioning) products. Honeywell have unrelenting focus on performance, quality, delivery, value and technology in everything they make and do.