Amprobe AT-3500 Underground Cable Locator

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Keep productivity high and operational costs low, with the Amprobe AT-3500 Underground Cable Locator. It is the rugged, economical solution for locating cable, wires and pipes that are underground if they are energized or de-energized. Great for parking lot and airport lighting applications, it precisely pinpoints buried services, with exceptionally fast sound and meter response.

The backlit, multiple-segment, bar graph, digital display, plus audible indicators easily locate cables and wires. The AT-3500 Underground Cable Locator employs the proven 33 kHz frequency for most locating applications. To avoid lines at utility construction sites, it also offers the highly sensitive power and radio modes. Take depth measurements with the simple press of a button.

Receiver depth range & measurementMaximum 16 ft (4.9 m)
Passive tracing frequencies50 Hz / 60 Hz
Transmitter frequencySingle, non-adjustable
Receiver active frequencies (Hz)32.768 kHz
Receiver passive frequencies (Hz)Range 1: radio 15 kHz to 23 kHz
Range 2: power network 50 Hz / 60 Hz;
optionally 100 Hz (can be adjusted by Amprobe service personnel)
Receiver depth display accuracyRange 1: radio +/- 20 %
Range 2: power network +/- 20 %
Range 3: transmitter +/- 5 % (>5m (6-FT)),
+/- 20 % (<5m (15-FT))
Receiver antenna (distance sensitive left/right guidance)
Line ID (signal select, guidance compass, distortion alert)