Original, brand new, and completely uninstalled Honeywell Home pipe thermostat. The item is in pristine condition and comes complete inside its original factory retail box as shown in the photos. The L641B series is engineered specifically for surface mounting directly onto domestic central heating pipe networks (suitable for standard 15mm to 28mm pipe diameters). It is commonly used to provide low-temperature frost protection or high-temperature safety limiting across pumped systems.
