AQARA Hub E1 - security system hub, which at the same time is used as a Wi-Fi Repeater. A maximum of 128 devices can be connected to the smart hub. The Wi-Fi frequency of the device is 2.4 Ghz. Such sensors as: natural gas sensor, water leakage sensor, temperature sensor, etc. can be connected to the hub. The device can be managed with the Aqara Home application.