MSA Instrument Division is the leading supplier of refrigerant leak detection systems for the
commercial and industrial HVAC market. Drawn sample (tube) and hard-wired systems are
available in a range of capacities. The Chillgard monitors utilize the photoacoustic infrared
technique for accuracy and fast response. The Chemgard uses the same technology to provide
PPM level detection for a wide range of toxic gases and VOC’s, and is available in a Class I,
Group B/C/D, Div. 1 package.