Gas detection since 1983, wireless gas detection since 2005

The Otis Instruments Permian II Model OI-792 is a DC powered dual channel Hydrogen Sulfide Gas or Combustible Gas Monitoring system. The Permian II includes 2 Model OI-641 H2S Sensor Assemblies or 2 Model OI-130 LEL Sensor Assemblies, plus the OI-481 Strobe Light Alarm and OI-488 Audio Alarm, along with 25 feet of Sensor cable and 50 feet of power cable with battery clips. The Permian II is equipped with a digital display, dual alarm levels for Low and High alarms, and a fault indicator. Each alarm level uses 10 Amp relays, and has a visual LED indicator on the front panel. Both the Low and High alarms are adjustable full scale, and the High alarm is equipped with a High alarm disable switch. The Permian II is housed in a NEMA 4 enclosure (8" x 8" x 5") with a clear door for easy viewing. The electronic card is mounted on a swing frame mount for quick and easy rear access when necessary. Each Permian II carries a clearly-marked serial number located on the front panel for inventory control. The Permian II by Otis Instruments is a high quality monitor designed to ensure easy installation, operation and maintenance.