Manufacturer Name: Honeywell Product Number: C7233A1016 OEM Part Number: C7233A1016 Product Description: Co2 Wallsensor,0/2-10Vdc4/20Ma Weight:0.32lbs/145.15g The Honeywell C7233A1016 Wall-Mounted carbon dioxide sensor is detects and displays the quality of air inside the dwelling. It applies non-dispersive infrared NDIR technology to determine the concentration of CO2 in the a... https://www.partshnc.com/c7233a1016-honeywell-co2-wallsensor02-10vdc420ma