Macurco CM-12


Gray Housing CO Detector & Controller

Availability: In Stock

  • Factory New
Brand: Macurco Part #: 80781 Categories: , Manufacturer Part #: CM-12


The Macurco CM-12 is a line voltage, dual relay Carbon Monoxide (CO) detector, controller and transducer. The CM-12 utilizes an internal switching power supply that is capable of using line voltage between 100 and 240VAC and 50-60Hz. The CM-12 has selectable 4-20 mA output, buzzer and digital display options. It is an electronic detection system used to measure the concentration of Carbon Monoxide and provide feedback and automatic exhaust fan control to help reduce CO concentrations in parking garages, maintenance facilities or other commercial applications. The CM-12 is a low-level meter capable of displaying from 0-200 ppm (parts per million) of Carbon monoxide. The CM-12 is factory calibrated and 100% tested for proper operation, but can also be calibrated in the field.


Weight 1.20 lbs
Dimensions 4.50 × 4.00 × 2.13 in




Production Status



  • ETL LISTED Certified to CAN/CSA Std. C22.2 No 61010-1 Conforms to UL Std. 61010-1
  • Low level meter capable of displaying from 0-200 ppm of CO
  • he CM-12 meets the Uniform Building Code for enclosed garages and meets OSHA standards for CO exposure
  • Selectable fan and alarm relay activation
  • 5 A SPDT fan relay controls starters of exhaust fans
  • 5 A N.O. or N.C. alarm relay connects to warning devices or control panels
  • 4-20 mA Current Loop
  • CM-12 mounts on a standard 4×4 electrical box and becomes cover for the box
  • Supervised system: any internal detector problem will cause the fan & Alarm relay to activate
  • Calibration kit is available. One screw allows access for calibration or gas test


Carbon Monoxide Detector, Controller and Transducer; Macurco™ CM-12
Macurco – User Manual