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Cellular IoT and Bluetooth LE temperature and humidity monitoring solution employs Nordic power management IC to ensure safe storage conditions for pharmaceuticals and perishables
05
Jan
2026
2026
Oslo, Norway
In addition to Nordic’s nRF9160 SiP module and nRF52832 SoC, InVentia’s CoolSens system integrates the nPM1300 PMIC to simplify system design and enable longer run times and efficient battery charging
Polish company InVentia has released a remote temperature and humidity monitoring system designed for use in cool rooms and refrigeration units. The ‘CoolSens’ system is comprised of ‘CoolSens Nodes’ which can use either internal or external sensors to measure temperature (with a range of -80°C to 150°C), or humidity, as well as the ‘CoolSens CloudHub’ – which acts as a combined sensor and data concentrator, and is capable of measuring temperature, humidity, and pressure locally.
Dual cellular IoT and Bluetooth LE solution
Each node is powered by Nordic’s nRF52832 SoC, enabling it to collect and transmit data to the CloudHub via Bluetooth LE®. The hub, which can also gather data from its own internal or external sensors, employs both the SoC to receive data from the nodes, and the cellular connectivity of the low-power nRF9160 SiP module to relay the data to the ‘CoolSens Cloud’ platform.
“This system is primarily used to monitor and ensure proper storage conditions for pharmaceuticals and medical products,” explains Andrzej Paszkowski, Product Owner, CoolSens. “This helps to safeguard their quality and ensure compliance with regulatory standards.
“It’s also suitable for use in a range of other sectors such as hospitals, laboratories, logistics, the food industry, hotels, restaurants, cultural heritage protection, agriculture and winemaking.”
Cellular communication to the cloud is enabled by the nRF9160’s multimode LTE-M/NB-IoT modem. The data can then be accessed remotely to ensure goods monitored stay within predefined temperature thresholds, either via the CoolSens Cloud platform or a dedicated Android app. The cloud platform provides a range of monitoring tools, including tables, graphs and dashboards. Users can filter data by type, location or status, and generate automated reports at chosen intervals. Custom alerts can also be configured to notify users via push alerts, email or SMS whenever temperature or humidity readings fall outside of the specified thresholds. The system supports remote configuration, enabling users to adjust measurement intervals, alarm thresholds and data transmission frequency.
We rate the nRF Connect SDK very highly and used it throughout development. In our opinion, the Zephyr RTOS—together with the libraries provided by Nordic—offers the best environment for creating highly energy-efficient applications
Andrzej Paszkowski, Product Owner, CoolSens
nPM1300 simplifies system design and power management
The CoolSens Nodes are powered by a CR2477 coin cell battery, while the CloudHub includes two power options – either two AA high-current lithium batteries, or a rechargeable lithium-ion battery used in conjunction with the Nordic nPM1300 power management IC (PMIC). The nPM1300 PMIC simplifies system design by integrating essential functions required for embedded LTE-M/NB IoT designs into one small package, enabling longer run times and efficient battery charging with fewer components.
The nRF9160 also offers class-leading power consumption, supporting both PSM and eDRX power saving modes that allow it to sleep for longer periods of time. For both LTE-M and NB-IoT the PSM floor current is as low as 2.7 µA, and with an eDRX interval of 655 s the average current is 6 µA for LTE-M.
“We developed our own application code for both the CoolSens Node and the CloudHub using Nordic’s nRF Connect SDK,” continues Paszkowski. “We rate the nRF Connect SDK very highly and used it throughout development. In our opinion, the Zephyr RTOS—together with the libraries provided by Nordic—offers the best environment for creating highly energy-efficient applications.”
