The Bosch HVAC 87145001170 Temperature Sensor is a replacement sensing component designed to monitor temperature within compatible Bosch HVAC equipment. It detects changes in temperature and sends corresponding signals to the system control, allowing the equipment to adjust heating operation and maintain proper operating conditions. This sensor is used in compatible boilers, furnaces,... https://www.partshnc.com/bosch-hvac-87145001170-temperature-sensor