The Sewer Smell Leak Detector by Forensics 0,10,000ppm 1ppm Resolution Water Dust is a highly sensitive and accurate gas detector designed specifically for detecting leaks in sewer systems. With a resolution of 1 ppm, this detector is capable of detecting even the smallest of leaks, ensuring a thorough inspection of the sewer system. Its advanced technology allows for easy detection of water and dust odors, providing a reliable solution for those in need of a thorough inspection of their sewer system.