Aube By Honeywell TH104PLUS/U Programmable Electronic Thermostat Ultimate temperature control the most accurate type of thermostat on the market (0.15-Degree C / 0.27-Degree F); 5 + 2 programming - separate programs for weekdays and weekends 2-wire non-polarized connection means fast, hassle-free installation; 100-Percent silent operation - ideal even for bedrooms Temporary bypass enables temperature override without changing programming also ideal for for radiant ceilings Large backlight LCD features intuitive programming icons For baseboards, convectors and fan-forced heaters