Danfoss ESMT is a Pt 1000 Ω outdoor temperature sensor. It is used to measure the outside temperature and send this information to a control system. This data can then be used to control heating and cooling systems, ensuring that the indoor temperature is always comfortable.

The ESMT is a two-wire, non-polarized sensor, which means that the wires can be connected in either order. It has a connection cable with two wires, each with a cross-sectional area of 0.4 to 1.5 mm2.

The sensor should be mounted on the coldest elevation of the building or zone, which is normally the north elevation. This will ensure that the sensor is measuring the coldest temperature and providing the most accurate data to the control system.