enclosure

I have my Equipment in a rack enclosure. The enclosure is vented and I can install fans but my ideal is to have some sort of temperature data logger but with an alert; maybe via email or something like that. I'm wondering if anyone may have some recommendations?

Hi guys I am planning to run the below from this enclosure in the garage. 1x nvr5216-16p-4ks2 with 2 HDD 1x modem/router 1x UPS to run it all It is IP66 rated, so it would be pretty air tight. I planning to cut in few vents on the side. Do you think passive ventilation will be enough or should...