Submersible temperature sensor

It is used immersed in water, placed under the ground or embedded in concrete to control phenomena with high temperature range, such as the day / night cycle on structures, or to compare thermal errors made by some instruments. The type of sensor (platinum resistance thermometer) is protected by an IP68 stainless steel container. The instrument is a stainless steel cylinder inside which the sensor is embedded and sealed by thermoconductive resins.