Model AVB-712TM has the additional feature of a built in 512Hz transmitter camera head. The handheld locating receiver can detect the signal up to a depth of 5 metres giving the ability to precisely detect the location of the camera head. The controls are on/off and sensitivity adjustment. The hand held receiver is battery powered (batteries not included) The cable frame is of stainless steel with 2 wheels for easy transportation. It is rugged and built to withstand the rigours of pipe inspections in the harshest of working conditions. The whole system is powered by a 12V 14W li-ion battery. The charge time is 5 hours and has a working capacity of over 4 hours. There are 3 camera head skids of 110mm, 150mm and 220mm to aid centralisation of the camera head in various pipe sizes and negotiate various bends. Additional skids can be manufactured to customer dimensions. Please advise your specification for pricing. The display and control monitor has a 315 x 40mm high contrast & hig