The SP Uni sensor regularly, by default once every 20 minutes, measures humidity and temperature with a built-in sensor and, if connected, temperature with an external sensor of an extended measurement range. If there is a LoRaWAN radio connection, the data is immediately transmitted to the SunPeak cloud service. If the signal level is insufficient, the device stores the data until the next communication session. The device's memory capacity is sufficient to store measurements for several months. Such features allow the use of the logger in transport when transporting climate-sensitive goods, such as food, medical supplies, etc., ensuring control of conditions. The battery lasts for several years without replacement.