Calibratable temperature transmitter with sleeve sensor THERMASGARD~ HFTM-Modbus with Modbus connection, Connection box made of impact-resistant plastic, housing cover with quick-release screws, optionally with/without display for visualizing the actual temperature. The temperature transmitter with remote sensor is used to measure temperatures in liquid and gaseous media, e.g. by installation using an immersion tube or as a duct sensor. The sensors are tuned at the factory. Adjustment or fine-tuning by the user is possible (the zero point offset is adjustable).