"Monitored" means to observe, watch, or keep track of something or someone closely and regularly to ensure things are going as planned or to maintain safety and control. Full definition
It should also be paid attention (especially in the experimental study) to the form of monitor of variables, which may have a direct or indirect impact on results. (customwritingservices.org)
There are a few different types of tire pressure monitoring systems in the car. (yourmechanic.com)
I would gladly live without the blind - spot monitor for the stick. (autoweek.com)