Description
SeekTech SR-20 Line Locator by RIDGID (21893) | Precision Utility Locating
The SeekTech SR-20 Line Locator (Model 21893) by RIDGID is a lightweight, rugged underground utility locator designed for fast and highly accurate line tracing. Engineered with advanced target line guidance, multi-frequency capability, and real-time interference monitoring, the SR-20 helps technicians quickly pinpoint the position and direction of buried utilities with confidence.
Features & Benefits
- Target Line & Guidance Arrows: Quickly identify distortion and stay aligned with the utility’s true path.
- Wide Frequency Range (10 Hz to 35 kHz): Trace any active or passive frequency to match job-site conditions and line types.
- Proximity & Signal Strength Indicators: Work through challenging locates with clear visual and audio feedback.
- Real-Time Interference Monitoring: Continuously scans for competing signals to reduce locating errors.
- 3D Field Capture: Captures the complete signal field for faster, more accurate mapping of buried utilities.
- On-Screen Utility Positioning: Displays estimated position, direction, and utility depth to improve locating precision.
- Portable & Field-Ready: Includes a durable case and folding antenna mast for easy transport and storage.
- Built for Tough Environments: Rugged housing resists job-site impact, field vibration, and harsh weather conditions.
The RIDGID SeekTech SR-20 Line Locator is engineered to deliver professional-grade accuracy when locating buried utilities such as gas lines, water lines, communication conduits, and electrical paths. Designed for speed and reliability, the SR-20 uses advanced triangulation, signal processing, and guidance technology to help technicians see the complete signal field in real time. This results in faster, cleaner, and more precise locates—even in congested areas.
One of the key advantages of the SR-20 is its target line and guidance arrow system. This system instantly indicates when distortion or interference is present, allowing operators to adjust positioning before errors occur. By visualizing both the projected path and live feedback at once, the locator enhances accuracy in environments where traditional locating tools may struggle.
The SR-20 supports any frequency between 10 Hz and 35 kHz, offering unmatched flexibility in tracing metallic utilities. Whether paired with a SeekTech transmitter like the ST-305 or used in passive locate mode, the SR-20 delivers consistent, repeatable results from one job site to the next.
The built-in proximity signal and signal strength indicators help technicians work quickly through difficult locates, guiding them closer to the utility while providing confidence in the reading. Meanwhile, the onboard interference monitor continually scans the environment and alerts the operator to external noise or cross-signals that may affect accuracy.
The durable folding antenna mast improves portability while maintaining the full sensitivity and accuracy required for professional locating work. The included protective case ensures safe transport and storage, keeping the locator ready for daily field use.
In summary, the SeekTech SR-20 Line Locator combines speed, accuracy, and intuitive guidance—making it ideal for utility locating professionals who need reliable results in real-world field environments.
Use Cases
The RIDGID SeekTech SR-20 Line Locator is ideal for:
- Underground utility locating for gas, water, sewer, and electrical lines.
- Telecommunications locating including fiber-optic conduit mapping.
- Construction and excavation planning where accurate utility mapping prevents costly damage.
- Municipal maintenance crews needing fast, accurate utility tracing before repairs.
- Field technicians working in high-interference zones, tight workspaces, or crowded utility areas.
Why Choose The RIDGID SeekTech SR-20 Line Locator?
The SeekTech SR-20 Line Locator stands out due to its unparalleled combination of real-time signal field visualization, multi-frequency capability, and advanced guidance arrows. Unlike basic line locators that only track signal strength, the SR-20 provides directional feedback, distortion alerts, and interference monitoring—allowing technicians to avoid false readings and complete locates faster.
RIDGID’s long-standing expertise in diagnostic and locating technology ensures that the SR-20 is built for demanding professional use. With rugged durability, intuitive controls, and high-precision sensors, it continues to be a preferred choice for utility contractors, plumbers, municipalities, and field service teams.
FAQ
What frequency range does the RIDGID SeekTech SR-20 Line Locator support?
The SeekTech SR-20 supports tracing any frequency from 10 Hz to 35 kHz, providing flexibility for a wide range of locating applications.
Is the SR-20 compatible with SeekTech transmitters?
Yes. It works seamlessly with RIDGID SeekTech transmitters, including the ST-305, ST-510, and ST-33Q+ models.
Can the SR-20 identify signal distortion?
Yes. The SR-20 uses guidance arrows and real-time interference alerts to help operators avoid distorted or misleading signals.
Enhance your utility locating accuracy with the SeekTech SR-20 Line Locator. With advanced guidance features, multi-frequency support, and rugged field-ready construction, it’s a must-have tool for professionals who demand precision. Add to cart today and equip your crew with proven RIDGID locating technology.


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