The 3311832 is a fast-responding gas leak detector designed to identify and pinpoint methane and propane leaks. It features a semiconductor sensor with a response time of less than 10 seconds and provides both visual and acoustic alarms, including a 5-level LED display for concentrations from 40 to over 640 ppm. A 447 mm flexible probe allows for accessing difficult-to-reach measurement areas. This detector is ideal for quickly pinpointing leaks in closed piping systems and features an automatic calibration function for reliable performance.