A pipe inspection camera is a pushrod system that sends a waterproof camera head through a drain or sewer line while you watch live video at an access point. This guide is the hub: it walks the decision sequence a professional uses, in order, and links out to the specialist pages and data tools that carry the detail. Every specification referenced here comes from our verified configurations table, exact listing and OEM fields only. The same model family does not guarantee the same package.
Quick answer
Choose a pipe inspection camera in this order: match the head diameter to the smallest pipe on the route, confirm the cable is flexible enough for your bends and long enough for your run, decide whether you need on-screen inspection only or surface locating too, and confirm the exact listing against verified specifications before buying. Head fit comes first because it is the only step that can physically stop the inspection.
The selection sequence
Use this sequence before you compare individual products. Each step links to deeper material so this page stays readable while the specialist pages carry the weight.
- Job type. Diagnostic only, pre-purchase scope, post-cleaning verification, or locate and dig? Start with the job selector.
- Pipe diameter. The smallest internal diameter on the route sets the hard limit. Check it with the pipe size checker and size the camera head to it.
- Access and bends. Cleanout size, elbow count and trap geometry decide what can pass. A soft rod with a small head clears turns a stiff rod will not.
- Push cable and reach. Cable diameter and stiffness trade bend navigation against push force, and advertised length is not achieved reach. Use the cable length selector and the push cable guide.
- Image and lighting. Resolution alone does not decide in-pipe visibility; LED area scaled to the head does as much work.
- Sonde and locating. A transmitter frequency must match the receiver, and depth is estimate-grade. See sonde vs receiver and how locating works.
- Recording and reporting. Confirm the recording path on the exact listing if you need footage for a report.
- Serviceability. Replacement heads and cables vary by brand and are unknown until sourced, so ask before you commit.
What a pipe inspection camera is
These are pushrod cameras for drainage pipe, typically 1.5 in to 8 in residential and light-commercial lines. A head on a semi-rigid cable sits on a reel, and a monitor displays the live feed while the operator pushes from a cleanout or approved access point. For the mechanics of each part, see how a sewer camera works.
Head diameter decides fit
Head diameter, commonly 17, 23 or 25 mm, must fit the bore and negotiate the fittings, and a guide or skid changes the moving assembly around it. Because “size” gets used loosely, it is worth separating the three things it can mean before you buy: see sewer camera sizes explained and, for the practical choice, what size you need.
Push cable, reach and bends
Advertised cable length is a ceiling, not the reach you get. Real lines turn, and every bend spends push distance, so a stiff rod reaches further in a straight run while a soft rod goes further around tight fittings. Match the cable to your route rather than to the biggest number on the box.
Sonde, locator and the distance counter
The sonde transmits and the receiver detects above ground, and the two are often sold separately. Just as important, the distance counter measures cable insertion, not a location on the surface, so a reading of “40 ft in” is not a point in your yard. To turn a fault on screen into a spot to dig, you need a matched sonde and receiver. Start with what a 512 Hz sonde is and confirm pairings on locator compatibility.
What a pipe inspection camera cannot do
- It cannot see outside the pipe wall or through opaque standing water.
- It cannot pass a full collapse; it documents up to the stop.
- It does not clear lines.
- Locator depth is estimate-grade, not a survey.
- A visible symptom is not the same as a confirmed root cause.
Common questions
What is the first specification to check?
Head diameter against the narrowest pipe on the route. It is the only specification that can physically prevent the inspection, so it comes before cable length or features.
Do I need to buy, or can I hire?
It depends on how often you will use it. Work the numbers with the buy vs hire calculator before deciding.
How do I trust a marketplace listing?
Match its exact listing to a verified row rather than trusting the title or the photo. The method is in how to read a sewer camera listing.
Next steps: How to choose a sewer inspection camera · Best sewer cameras · How we evaluate
Data tools: Sewer Camera Finder · Pipe Size Checker · Specifications · Compatibility database