Wireless Devices AF-21MQTT Alarm Follow Message Transceiver Center User Manual
Learn how to use the AF-21MQTT Alarm Follow Message Transceiver Center with this detailed user manual. This wireless device uses MQTT/HTTP protocol to send short messages to smartphones, pagers, tablets, and PCs without any telecommunication charges. It contains WLAN, Wi-Fi and POCSAG transceiver modules and has 8 ON/OFF dry contacts for alarm applications. Get started with this IoT Cloud Access-automation-security alarm message transmission center today.