Compare up to three verified sewer line locators side by side, by frequency, line-tracing and depth features. The tool lists only verified locators, and it treats a frequency match as a starting point, never as manufacturer certification.
Quick answer
A locator is only useful if it can hear your camera’s sonde, so the first thing to compare is frequency. Among sewer cameras with an integrated sonde in the configurations we track, 512 Hz is the most common locating frequency, so a receiver has to list 512 Hz to match them. Beyond that, compare whether a locator traces conductive line as well as detecting a sonde, and whether it estimates depth. Match the frequency first; everything else is a refinement on top of a receiver that can already detect your sonde.
Compare up to three VERIFIED locators. Frequency match is not OEM pairing.
Frequency is the first comparison
Two locators can look similar on paper and be useless to each other in practice, because they listen on different frequencies. A receiver built only for high-frequency conductive line tracing will not detect a 512 Hz plastic-line sonde, no matter how capable it is otherwise. So before comparing any other feature, confirm each locator lists 512 Hz for sonde work. A multi-frequency receiver is fine, but only if 512 Hz is among the frequencies it names. Our guide on sonde vs receiver explains why this is the distinction that decides whether a locating setup works at all.
Sonde mode vs line tracing
Locators do two related but different jobs. Sonde mode detects the transmitter in your camera head, which is what you use to mark a fault the camera has already found. Line tracing follows a conductive path along a pipe or a trace wire, which is a broader utility-locating job. For sewer camera work you primarily need reliable sonde mode at 512 Hz; line tracing is a bonus that matters more to professionals than to a homeowner marking one dig. When you compare, be clear which job you are buying for, because a receiver strong at one is not automatically strong at the other.
Depth, and why it is an estimate
Many receivers report a depth to the sonde, and it is genuinely useful, but it is estimated from the shape of the signal rather than measured. Its accuracy is a manufacturer claim tied to that specific receiver, and it degrades in metal pipe where the field is weaker. Compare depth features with that in mind: treat a depth readout as a strong guide, confirm the horizontal position by finding the clean signal peak, and leave margin when you dig. A documented pairing between a camera and a receiver is worth more here than two devices that merely share a frequency, because any tested depth behaviour lives in the pairing, not in the number alone.
How to use the comparison
- Confirm your camera’s sonde frequency, almost always 512 Hz.
- Select verified locators that list that frequency for sonde mode.
- Decide whether you also need line tracing, or only sonde locating.
- Compare depth features, remembering they are estimates.
- Prefer a documented camera-and-receiver pairing where one exists.
If you have no receiver yet, the locator finder shortlists receivers that detect your camera’s sonde, and camera and locator compatibility confirms whether a specific pairing is documented rather than merely frequency-matched.
Common questions
Will any 512 Hz locator work with any 512 Hz camera?
A matching 512 Hz frequency indicates signal-frequency compatibility. It does not by itself prove manufacturer-certified interoperability, equivalent locating depth, identical receiver behavior, or documented pairing.
Do I need line tracing?
For most sewer camera work, no. Reliable 512 Hz sonde mode is what marks a fault the camera found. Line tracing matters more for broader utility locating.
Why does the tool not pick a winner?
Because the right locator depends on your camera’s frequency and your job. The tool shows the trade-offs and only points to one when your requirements genuinely exclude the others.
Locator ecosystem: Locators hub · Locator specifications · Locator finder · Compatibility
Match the frequency before the features
When you compare locators, start with the frequencies each one reads, because that decides whether it can hear your sonde at all. A receiver tuned to the wrong frequency is useless no matter how good its screen or depth readout. Once the frequency match is settled, weigh the modes, the depth estimation, and the power and weight against how you work. A feature you never use is not worth paying for, and a missing frequency cannot be added later, so the frequency row is where a fair comparison begins.