I am looking for recommendations for, cabled, PTZ camera(s) for use in a dark location. Need audio as well. These are for install in a bat colony for research purposes. The facility has 6 fixed cameras but we need to add a couple of PTZ cameras that can be controlled remotely via blue iris. Need to have good quality images of extremely fast movement. The conservation agency does not have a big budget so as reasonably priced as possible. Working range 2 to 16 feet.