Цельсиум is a free iPhone application developed by Mobile TeleSystems Public Joint Stock Company. It falls under the category of Business & Productivity and aims to help business clients monitor the microclimate in their offices, warehouses, stores, and other spaces where maintaining specific air pressure, humidity, and temperature parameters is crucial.

The app works in conjunction with a wireless sensor or a group of sensors installed in the premises. Цельсиум visualizes the data and sends notifications if the readings go below or above the set norms.

The climate indicators are transmitted from the Цельсиум sensors to the cloud, allowing users to view them online from any device with internet access. The app displays a list of connected spaces on a map, along with all the devices and their technical parameters, and provides microclimate readings for each.

The web version of Цельсиум offers even more features and functionalities, such as viewing floor plans, statistics, data history, and more.

Available parameters in Цельсиум include temperature, humidity, pressure, and air quality. The app allows users to configure access to the readings for multiple users, with each having personalized access rights set and edited by the main administrator, who is the owner of the space.