The RelAir OCS is a wireless M-Bus temperature and humidity sensor for outdoor use. Our sensor fits into your OMS wireless network and enables reliable monitoring of the current values.The robust housing, which is protected against splashwater, and the power supply from the built-in battery make the measurement completely uncomplicated. Due to the simple assembly and the configuration of the transmission interval, encryption and
wM-Bus mode implemented by contacts, the installation and commissioning do not cause any special efforts. Depending on the transmission interval the battery lasts for more than 10 years.

Technical Features

• Wireless M-Bus according to standard EN13757-4 Mode S and T
• Frequency range 868 MHz
• Optional encryption AES 128 Mode 5
• Transmission interval adjustable 1 min, 5 min, 10 min, 15 min
• Confguration via contacts
• Internal antenna
• Power supply via fxed lithium battery, battery life up to 10 yeras (depending on the transmission interval)