·Support the collection of alarm information for 100 environmental controllers;

·220V power supply (built-in battery, capable of power-off alarm);

·Can be connected to one alarm horn output (capable of outputting 12V);

·Support voice output of alarm content;

·Support free selection of alarm content;

·Support SMS and phone alarm;

·Support alarm statistics and alarm log queries;

·Shortcut buttons (volume "+-" and "alarm reset").

·Support 4G all network connectivity, WIFI, and wired networks;

·Support RS485 communication extension function.