emits in wavelengths that are even longer than infrared which is longer than visible. UV is shorter than visible and XRay even shorter still. Radar
isn’t even close to the right wavelength. Trying to use radar on the other hand my give you some nerve damage similar to sticking your hand in an operating microwave. That’s why the manufacturers are so careful about door interlocks, the liability of a microwave running with the door open is huge. Note that early microwaves were called radar-ranges.
Putting a sonar transducer
probably isn’t going to hurt you but the electronics
are all geared to detecting returning signals from 1’ to 600’, not from 0”-3”. And it really isn’t set up to give you an image but a single