The Ridgid® SeekTech® ST-510 Line Transmitter lets you energize metallic lines for tracing with a locator. The ST-510 is used to generate an “active” signal on a metallic underground line so that it may be traced with a compatible receiver such as the SeekTech SR-20 or SR-60. This allows the line’s location to be correctly marked so it can be exposed for repair or avoided during excavation. The LCD display provides instant visual feedback on line resistance and current flow. Audio feedback confirms a good circuit before beginning a trace. The R21903 outputs up to 10 watts of fully variable power and comes with two 25' (7.62 m) lead wires with heavy duty clips.
- 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
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