A Small White Temperature Sensor That Should Be Located On The Outside Of The Building, On A North Facing Wall. This Is Wired To The Internal Controls Of The Boiler And Information About The Outside Temperature Is Sent To The Boiler Controller Constantly.

Brand Name	Viessmann
Colour	White
Material	N/A
Manufacturer Model No	7543241
Wear Type	N/A
Type	Weather Compensation
Certifications Met	N/A
Country of Origin	N/A
Protects From	N/A
Waterproof	N/A
Number of Pockets	N/A
Range Description	Controls