RIDGID, Transmitter, models:

KD-4000 Line	User Manual
NaviTrack 10	Operator'S Manual
NaviTrack FloatSonde	User Manual
SeeSnake Max rM200	Operator'S Manual
SeekTech ST-305	Operator'S Manual
SeekTech ST-33Q	Operator'S Manual
SeekTech ST-510	Operating Instructions Manual