The Worcester Bosch DT10RF MK II Programmer Digistat 7716192052 is a programmable thermostat designed for use with Greenstar heating systems. It features a 7-day programming schedule with 3 periods per day, allowing for precise control over heating settings. The digital control style, along with features such as vacation mode and adjustable thermostat settings, make it a convenient and energy-efficient option for home heating management. With a sleek white rectangular design and wall-mounted installation, this thermostat is both practical and visually appealing for any home.