---
lang: "en"
title: "Wireless M-Bus Temperature and Humidity Sensor"
sku: "RELAIR-OCS"
canonical_url: "https://shop.marcomweb.it/en/wireless-mbus/wireless-m-bus-temperature-and-humidity-sensor"
brand: "MARCOM S.r.l."
end_of_life: "false"
---

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RelAir OCS: Wireless M-Bus outdoor temperature and humidity sensor

RelAir OCS is a wireless M-Bus temperature and humidity sensor for outdoor use. Our sensor integrates into the OMS wireless network, enabling reliable monitoring of current values. The robust, splash-proof housing and power supply from the integrated battery make measurement completely simple. Thanks to easy mounting and configuration of the transmission interval, encryption, and the wM-Bus mode implemented by contacts. wM-Bus mode, installation and commissioning require no special effort. Depending on the transmission interval, the battery lasts more than 10 years.

## Technical Features

- Wireless M-Bus according to EN13757-4 Standard S and T Mode
- Frequency range 868 MHz
- Optional AES 128 Mode 5 encryption
- Adjustable transmission interval 1 min, 5 min, 10 min, 15 min
- Configuration via contacts
- Internal antenna
- Power supply via fixed lithium battery, battery life up to 10 years (depending on transmission interval)

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Source: https://shop.marcomweb.it/en/wireless-mbus/wireless-m-bus-temperature-and-humidity-sensor

MARCOM S.r.l. — a trusted supplier for industrial automation and building automation.