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Compiler/TDC1000: Is TDC1000 Need Extra Ultrasonic Sensor

Part Number: TDC1000

Tool/software: TI C/C++ Compiler

Dear sir,

I want purchase TDC-1000  to detect liquid level ( Desiel ) and connected to My Controller through SPI.

My doubt Is TDC-1000 consists of Ultrasonic Sensor itself or should I buy extra Ultrasonic sensor externally..

Can u please help me.. urgently..

Thank you.