Sondes are battery powered transmitters used to trace the path of both non-metallic and metallic pipes and ducts. A receiver in sonde mode tuned to the same frequency can locate the position and depth of to the sonde.
• Dimension: 0.9in (23mm) x 17.3in (440mm) long
• Frequency: 512Hz, 640Hz
• Range: 20ft (6m)
• Battery: 1 x AA alkaline battery (LR6)