Various Kinds of Interface: The AE11A04 DTMF generator module is equipped with 7 MCU input interface on the module designed for dialing keyboard and MCU interface.
Good Workmanship Circuit Board: The audio generator board is made of FR-4 PCB board, aluminum electrolyte capacitor, high concentration tin, SMT components, high power transistor.
Product Feature: The 5~24VDC audio generator board has wide voltage range . And the module can instruct MCU to generate 16 dual tones from Audio 1/2.
Good Contact Performance: This DTMF generator module's all contact materials are highly conductive material surfaces and has good contact performance to ensure stable working.
After Sale Service: If you do not satisfy with our products or if you have any questions, please come to us. We would work out satisfactory solution to all your problems. 24 hours quick response.