The IONA from Ditel is a low-cost device that wirelessly measures temperature and humidity via Bluetooth communication. It has a battery life of over 30 months and displays data on any HDMI monitor, also receiving messages sent from the Ditel MQTT portal. It is designed to be placed in demanding environments like cold storage, thanks to its IP65-protected probe, making it ideal for monitoring sensitive products, such as medications, that require a controlled cold chain.