Non-programmable thermostats are used to set the temperature of a designated area. These devices are ideal to consumers to control the temperature in an area, to provide optimal comfort. Many contractors, home and building owners choose Honeywell non-programmable thermostat series such as: Non-Programmable FocusPRO, Non-Programmable PRO, T8775, T87K, T87N, T822, T834, T812, TS812, TL7135, TL7235, TH401, T410, T498, T4398 and many other Honeywell series.