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Q5C-CO-250P-O-X Carbon Monoxide Analog / Modbus RTU Toxic Gas Transmitter by ACI

Manufacturer: ACI
SKU: Q5C-CO-250P-O-X
Availability: 0 in stock
Minimum Order Quantity is 1
Products specifications
Attribute nameAttribute value
Gas TypeCarbon Monoxide
Measurement Range0~250 ppm
Output4~20 mA, 1~5 Vdc, 2~10 Vdc
CommunicationRS485, Serial, Modbus, OptoMux
Contact3 SPDT
Supply Voltage24 Vac, 24 Vdc


The B5/Q5 Toxic/Combustible Gas Detectors use various sensing technologies to detect a wide assortment of gases

  • These units are housed in a NEMA 4X rated plastic enclosure that will meet the most stringent applications
  • All models feature an internal clock, LCD Display for displaying gas concentrations and setup, LED Status Indication, integral buzzer with three user configurable relays and a number of different communication protocols for use with one of our gas controllers or your
    building management system
  • Factory calibrated sensor module replacements are available and are easily replaced in the field by removing two screws on the previous module
  • All units should be checked for proper functionality and calibration once the replacement sensor module is reinstalled and has had a chance to warm up
  • A user selectable password can be used to protect the system integrity
  • The Q5 can be used as a standalone gas detector or in conjunction with the Q4C, M-Controller or Q-Controllers using the proprietary RS-485 Optomux communication protocol
  • The B5 uses BACnet™ MSTP (RS485) protocol to communicate directly with a BAS. ACI also offers a full line of horns and strobes that can be used with the Gas detectors or building management system to alert building occupants of an alarm condition
  • Refer to all applicable Federal, State, Provincial and Local Health and Safety laws and regulations before using these products
  • The Q5/B5-GENL can be ordered to monitor specific combustible gases such as Gasoline, Ethanol, Diesel or Jet fuel
  • Contact ACI for specific gases