RelAir ICS – Wireless M-Bus temperature and humidity sensor for indoor climate

RelAir ICS for temperature and humidity monitoring in buildings.

RelAir ICS is a wireless Wireless M-Bus temperature and humidity sensor designed for continuous indoor climate monitoring in residential, office, commercial, and technical buildings. The RelAir ICS model operates in the OMS standard, uses the 868 MHz band, and enables stable data transmission to Wireless M-Bus gateways and data collection systems. Thanks to battery power, simple configuration, and a compact housing, RelAir ICS is a practical choice wherever fast installation, reliable environmental data reading, and long-term operation without additional cabling are required.

Product features

• RelAir ICS measures temperature and relative humidity indoors
• Wireless M-Bus communication compliant with OMS and EN 13757-4
• Supports Wireless M-Bus S and T modes
• Operates in the 868 MHz frequency band
• Optional AES 128 encryption, mode 5
• Configurable transmission interval: 1, 5, 10, or 15 minutes
• Local configuration via DIP switches
• Battery-powered: 2 replaceable AA batteries
• Battery lifetime up to 10 years depending on configuration and transmission interval
• Wall-mounted housing with IP40 protection rating

Technical specification

RelAir ICS provides precise temperature measurement in the range of -10°C to +55°C with an accuracy of ±0.3°C and a resolution of 0.1°C. Relative humidity is measured in the range of 20% to 80% RH with an accuracy of ±2% RH and a resolution of 0.1% RH. Measurement data is transmitted cyclically according to the selected interval, allowing the device operation to be matched to the needs of the installation and the required reading frequency.

RelAir ICS in monitoring and building automation systems

The RelAir ICS sensor is used in environmental monitoring systems, building automation, and installations where wireless temperature and humidity reading is required. The device is well suited for apartments, offices, schools, public buildings, and technical rooms where indoor climate conditions must be monitored without installing communication cabling. Thanks to compatibility with Wireless M-Bus and OMS, RelAir ICS can be easily integrated with suitable gateways, concentrators, and higher-level data acquisition systems.

Why choose RelAir ICS

The main advantage of RelAir ICS is the combination of accurate measurement, wireless communication, long battery life, and simple configuration. It is a reliable solution for projects that require a professional Wireless M-Bus temperature and humidity sensor for indoor climate monitoring, without extensive wiring or complicated commissioning. If you are looking for a device for professional environmental monitoring and data collection systems, RelAir ICS is a practical and scalable choice.

Need help choosing the RelAir ICS sensor, a Wireless M-Bus gateway, or integrating it with a higher-level system? Contact our consultant: CONTACT