8 Channel Programmable Controller for O2 or Gas Monitors

Item #: 99058 (IN-STOCK)


Product Summary

The PureAire 8 Channel Controller is designed to provide simple analog control or full-featured digital control of toxic, LEL, and oxygen deficiency monitors. The controller remotely powers and operates up to 8 monitors up to 100 feet from the controller. Capable of accepting any two or three-wire gas detector, it features two user-adjustable common alarm relays which will, in the event of a gas leak, or a fault from one of the monitors, alert personnel. The multi-channel controller incorporates various modes of operation for taking channels offline individually for performing calibration or sensor maintenance. Each channel can be individually designated with PPM, PPB, or %. The LCD screen displays the readings from all 8 channels simultaneously, and the trends from each channel may be viewed in graph form over a period of time.

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  • Designed to control and power 8 monitors
  • Connects any 2 wire or 3 wire gas sensors
  • Digital and graphic LCD gas concentration
  • RS-485/Modbus RTU output
  • Built-in power supply
  • NEMA 4X IP66 Water-Resistant Enclosure

The PureAire Multi-channel Controller connects 2-wire or 3-wire to oxygen monitors, analyzers, or gas detectors. The built-in power supply allows the multi-channel controller to power the monitors located up to 100 feet away. The 2 adjustable relays allow you to create desired audible warnings notifying workers.

The 8-channel controller allows you to take channels offline individually for easy calibration or sensor maintenance. While one channel is offline, the other systems will continue to operate normally.

The multi-channel controller allows you to set specifications for each gas sensor for quick differentiation. The LCD graphical display shows current data across all connected channels or trend data over a selected time period. You can manage controller display data in percentage, parts-per-million (PPM), or parts-per-billion (PPB). An RS-485 Modbus communication interface is available upon request.


Multi-Controller 8 toxic gas and oxygen monitors. 2 wire loop or 3 wire input
Display LCD graphic display
Humidity 0 – 90% non-condensing
Signal Outputs 2 Relays, NO type (200mA, 24VAC / 35 VDC)
Operating Temperature -32 to +122F
Display 3/4″ LCD Digital Display, Back Lit
Communication Interface Modbus RTU (RS485)
Power Requirements 115 / 230VAC 50/60HZ
Dimensions 11 in x 9.05 in x 6.5 in (279.4 mm x 229.9 mm x 165.1 mm)
Weight 6.2 lbs 2.8 kg
Country of Origin USA
Harmonized Tariff Code 8537.10.90.60
Additional Accessories List Price
Horn and Strobe  $170.00 US (P/N # 42002)
Remote Display $395.00 US (P/N # 99091)

8 Channel Controller Literature

8 Channel Controller Manual