C SCOPE 33 KHZ SONDEThe C. Scope 33 kHz General Purpose Sonde is a small battery powered transmitter hermetically sealed in a robust torpedo shaped case which which can be screwed onto the end of a drain rod and fed into a pipe. The pipe direction can be then be traced using a C. Scope Locator set to Generator Transmitter Mode. The location of a pipe blockage can be identified using this system with enormous cost saving potential.