Camera 2019 - Wohler Camera, Instrument technology corporation - home page, With over 20 years of service to the subsurface utility engineering community, instrument technology corporation has been providing personal and professional service, while finding the best products for our customers.. Wohler 6261 vis 200 visual inspection camera system with 1, Wohler's innovative service camera enables you to easily analyze damage in pipes of 1-1/2" dia and larger – and no power outlet required. compact by design and powered by a rechargeable battery, this complete camera set is supplied in a plastic case.. Wohler vis 200 operating manual pdf download., View and download wohler vis 200 operating manual online. service camera. vis 200 digital camera pdf manual download. also for: vis 250, vis 300, vis350..