Start with the route in.

Use the details you know to build a cautious shortlist.
This tool filters source-reviewed devices. It cannot prove a camera will pass, focus or diagnose.

1. What are you inspecting?
2. What do you know about the route?
Measure the narrowest usable opening, then allow clearance for a probe shoulder, cable and any fitted accessory.
3. What view and setup do you need?
A useful shortlist has limits

The tool will not fill in the gaps.

Unknown camera dimensions, app support, bend geometry, water ingress and achieved distance remain things to verify. An equal-diameter opening is not counted as clearance.

Front lens is not a side view.Dual lens is not a steering mechanism.Reach on the box is not inspection distance.Water rating is not a drainage survey result.