MSA/Mei Si An Explosion-proof Basic Gas Detector O2 Oxygen, MSA PrimaXI PrimaXP Gas Detector. The next generation of field gas detectors introduced by MSA. The PrimaX product is available in two versions: the PrimaXP explosion-proof model with an aluminum alloy housing, and the PrimaXI intrinsically safe model with a nylon plastic housing. Flammable gas detection is only applicable to the PrimaXP explosion-proof model. 257-213-8683 Gu MSA/Mei Si An Explosion-proof Basic Gas Detector O2 Oxygen Product Features: Standard 4-20mA output and optional modules, HART module, HART+RELAYS module, HART+RELAYS module with electrical isolation, configurable alarm and fault relays, normally energized/de-energized, normally open/normally closed, easy to use, embedded keyboard for simpler configuration and maintenance, large LCD screen and LED status indicators provide quick and intuitive sensor status information. Installation backplate enables quick field installation, plug-and-play terminals and rational electrical layout make field wiring very convenient, economical and durable, aluminum housing, 3/4" NPT cable entry, IP66, intrinsically safe HART connector, field installation accessories: mounting plate, pipe and pole mounting accessories, sensor protective cover. Simple field maintenance, sensor bayonet mount secures the sensor. Bayonet lock with safety screw for locking the bayonet mount, plug-and-play sensors: toxic gas sensors and oxygen sensors can be hot-swapped in hazardous areas, toxic gas and oxygen detectors offer optional field-range manual or automatic calibration. Certifications, explosion-proof design, suitable for hazardous areas above Zone 0 and Zone 21, wide range of certifications: ATEX, IEC, SIL2, UL, CSA, CCCF. MSA PrimaXP Explosion-proof Fixed Gas Detector Physical Characteristics Housing material: coated aluminum alloy housing, dimensions 220x162x100mm, weight 1.6kg, housing entries: 2xM25 or 2x3/4" NPT entries, temperature -40°C to +70°C, humidity 15%-90% RH non-condensing, protection rating IP66