The MGS-400 Series is a complete leak detection solution, designed specifically for safety compliance in HVAC and refrigeration applications. Modern refrigeration systems are designed to be efficient and leak free, but improper installation, inadvertent damage or mechanical wear can result in potentially hazardous leaks. With their rapid response time, low-temperature performance (-40° C) and integrated audio & visual alarms, MGS-400 Series gas detectors make compliance with safety regulations simple and easy.