Devices that still work when the internet doesn't.

Security & Access / deadbolt

Schlage B60N (B-Series single-cylinder deadbolt, various finishes)

D0 No Radio — No radio at all. It cannot phone home.

The unplug test

There is no router to unplug that this lock has ever heard of. It is a spring-and-tumbler mechanism: a key turns the cylinder, the cylinder throws a solid metal bolt. It works exactly the same during a power outage, an internet outage, or after the manufacturer stops existing, because none of those things were ever part of the circuit. There is no app, no firmware, and no account to lose.

Why this tier: Purely mechanical single-cylinder deadbolt: key outside, thumbturn inside, no battery, no electronics, no app, no connectivity of any kind, confirmed by the manufacturer's own product page and its complete installation instructions, whose parts list (key, housings, latch/strike screws, bolt, UL cup, reinforcement strike) contains nothing electronic. No intentional radiator exists to grant, so it cannot phone home because it has no mouth.

Specifications

Account requirednone
Works offlinefully
Forced firmware updatesno
Radiosnone
FCC IDnot checked
Local controlnone
Phones homenone
Parts availableyes
Availabilityin stock
Price band$30-45 (seen 2026-09-03)
Vendor risk 0 / 3

Where to buy

Open questions

Sources

Class A is primary (manual, FCC filing, teardown). Class B is corroborated community reporting. Class C is never sufficient alone.

History

Last verified 2026-09-03 — 3 days ago.