Drain Augers, Closet Snakes & Sewer Cameras

How does an above-ground pipe locator pinpoint the exact underground location and depth of a sewer inspection camera?

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 Correct IncorrectThe camera head houses a battery-powered 512 Hz electromagnetic beacon (sonde). An above-ground digital wand detects the peak dipole radio field and calculates exact depth.

How does an above-ground pipe locator pinpoint the exact underground location and depth of a sewer inspection camera?

• By listening for tapping sounds with a stethoscope
• Using GPS satellite signals inside cast iron pipes
• By measuring thermal heat radiating from the ground
• A built-in 512 Hz radio transmitter sonde in the camera head tracked by a handheld digital locator wand