URM sensor signal capture

Hi,

I want to use URM07 ultrasonic sensor, as I know, it is used to measure distance via ultrasonic signal, and there are ultrasonic transmitter and receiver. What I wondered is the ultrasonic signal strength while measure the distance. Is there any posibility, such as recode the sensor by myself?

Or any other ultrasonic sensors that can get this kind signal strength can be recommended. Thanks very much!!!