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This is low cost circuit for detecting the dial tone (Dual tone Multi-Frequency, DTMF) from a Mobile/Telephone line.

SKU: IFT00024-2 Category:


1. Operating Voltage: 7 to 12V DC. 2. Low power consumption. 3. On board 5V regulator. 4. Direct connection. 5. 4 PIN header interface for output 6. LED Indicators for POWER & DATA output.


Output Logic

Circuit diagram.


Additional information

Weight 10 g
Dimensions 70 × 40 × 15 mm


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