Module cảnh báo âm thanh MP3, Tone/4mode (Alert Module) RS-485 Modbus RTU, Wi-Fi Modbus TCP ICP DAS
The ALM-06-WF / ALM-04-MRTU is equipped with a 4 GB microSD card (TFlash), it can play the MP3 files when the DI status matches the pre-defined conditions or gets Modbus TCP/Modbus RTU commands via the Wi-Fi/RS-485. The built-in speaker power is 3W, it is about 99dB. And every condition not only plays the MP3 files but also can be configured to turn on the built-in relay to trigger other external device like warning lamp. When requires for louder sound, the module also features audio line out for external PA system.
