I’ve been satisfied with the Fluke Pro 200. Mine does not eat batteries. The receiver will distort audio a little bit once in a while, but this might be due to spare pieces that jingle around inside (after multiple drops).

Oddly, one of my favorite features is the wire map status light. If the light turns green (and it will turn green almost instantly), the map is good. There is no need to wait while watching the lights cycle through or listen to the tones.