With its huge, waterproof, durable, high-definition color screen and 30-meter solid probe with a 25mm diameter camera head, Extech’s HDV650-30G plumbing video lens set exhibits issues. The Extech HDV650-30G includes an illuminator that spotlights problem locations deep within the pipeline. The camera probe is strong enough to remove tiny obstacles. The Extech HDV65030G is suitable for checking p-traps, 90s, drains, and pipes, among other things.