HCSR505 instead of HCSR501?

I like the HCSR501 becuase it has a range of about 20 feet (give or take). But I would like to use the smaller HCSR505. The problem is the HCSR505 is much less range.

Does anyone know of a small PIR like a 505 with the range / sensitivity of a 501?

Thanks you.