bpk
Senior Member
- Location
- Northern Minnesota
We have a project to replace the air quality sensors in multiple truck maintenance shops with a more reliable better operating brand. Currently they are a 4-20ma signal based on the air quality of the building (mounted near the ceiling) to start the exhaust / make up air units. They are very tempermental to keep operating, and they cost alot. Do any of you deal with this kind of equipment or have done something like this in the past, its something that Im not real familiar with, but I would like to find a reliable sensor or any one elses input. Thanks in advance