Small, low-cost laser range finder with RS232 interface

There are many low cost (< $300) laser range finders on the market but
I could not find one that can be interfaced to a computer.

Do you know any small and low cost (< $300),  laser range finder with
RS232 (or RS422, USB etc) interface which can provide approx 5-10
measurements per second ?

Thx

Miem