The Meridian Universal Gas Detector from Scott Safety has a detector head designed to accept all sensor types, including electrochemical, catalytic bead, infrared or metal oxide semiconductor. It can support up to three sensors per transmitter. Hot swappable plug-and-play sensors make it easy to install and replace sensors in hazardous locations without powering down or declassifying the area. Its toxic and oxygen sensors are range agnostic, allowing the operator to change sensor range without recalibration. Sensors can be bench-calibrated in a lab, then installed in the field without additional recalibration. Its modular design and support for multiple communication protocols allows it to integrate into an existing infrastructure. It has global regulatory approvals and SIL2 certification from TUV-Rheinland. 800/247-7257; www.scotthealthsafety.com.