Grainger - Rigid Seektech ST-510
Grainger - Rigid Seektech ST-510
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Grainger - Rigid Seektech ST-510

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RIDGID ST-510 SeekTech Transmitter, 10 Watts
Model: ST-510 | Order No: 21903 | UPC: 0095691219039
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Has fully variable power output to maximize battery life or push the signal further down the run for better utility locating and large-diameter pipe location.

RIDGID ST-510 Offers


  • LCD display provides instant visual feedback about line resistance, impedance, and current flow keeping circuit information easy to read while underground wire locating
  • Extended range 25-foot (7,62 meter) terminal leads can attach using the heavy duty clips or built-in magnets and have built-in edge to scrape paint for optimal connection to pipe, ground or connection point
  • Generates frequencies: Direct Connect - 128 Hz, 1 kHz, 8 kHz, 33 kHz, 93 kHz; Induction - 1 kHz, 8 kHz, 33 kHz, 262 kHz* - Competitor frequencies available in both direct connect and induction


What's included with the RIDGID ST-510

  • SeekTech Transmitter
  • Direct Connect Leads and Clips
  • Operator's Manual
  • 8 x D-Cell Batteries (Alkaline)
  • Grounding Stake


RIDGID ST-510 Specifications

Power Source 8 Alkaline or rechargeable batteries
Weight Without batteries: 4.75 lbs (2.15 kg)
With batteries: 7.5 lbs (3.4 kg)
Dimensions Length: 7.0" (17.8 cm)
Width: 15" (38.1 cm)
Height: 6.5" (16.5 cm)
Cable Length: 48' Extended (14m); 46" contracted (1.1m)
Output Power Nominal 10 watts max.
1 watt maximum if frequency is above 45kHz.
Maximum output voltage 30V RMS; ~ 48V peak
Power Settings 4 mA, 15 mA, 50 mA, 150 mA, 600 mA
Default Settings 60 Hz Mode, 2 Hr. Shutoff, 30V-RMS Maximum, SeekTech frequencies loaded
FCC Limits .47 CFR 15.213 says that from 9kHz up to (but not including) 45kHz, peak output power shall not exceed 10 W. From 45kHz to 490kHz, it must not exceed 1W.