Not only freezers, but a lot of other appliances have become IoT-integrated to simplify inspection procedures. Instead of the health department looking at each freezer/smoke detector/gas detector/emergency floodlight individually, you can just present them with a report from your building's safety system. Older systems were mostly some industrial bus and are off-grid by default, but new ones are usually smarter, and as a result, IP-connected.

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goda90 an hour ago | parent [-]

What remote control mechanisms do detectors needs? Can't they just be broadcast only devices?

	▲	AdamN 23 minutes ago \| parent \| next [-]
		You probably need admin/write concepts in order to change users, rotate keys, allow/disallow IP ranges, network setup, etc.... Still totally agree that there should be guardrails around the core functionality but it's easy to imagine that the thermostat would be something one would expect to be able to control once you implement all this remote functionality.
	▲	Scandiravian 25 minutes ago \| parent \| prev [-]
		They could, but the person who's actually making the decision on which vendor to go with will most likely choose the ones that allow for remote management because they think it'll allow them to cut staffing In the end the market will optimise for that guy's opinion, not the optimal solution