DebC, I've got one of those PW tuners and I've given up on it because it eats batteries. Do you find the same thing?

I've changed to the Intellitouch PT-10, which has the same colour-changing feature as the PW, and it sits 'player-side' of the headstock instead of 'audience-side'. Very sensitive and it hears that dratted low 'E' without any problems.