What is an NFC lock? It's an electronic lock that checks a credential over near-field communication (NFC), the 13.56 MHz radio standard that only works when two devices are a few centimeters apart (NFC Forum). You tap a card or a phone, the lock verifies it, and the latch releases. Where NFC locks differ most is in where their power comes from. That last point gets lost in most product listings. Search for "NFC lock" and you'll find hotel keycard readers, home deadbolts with

Every self storage operator runs an overlock process, and almost none of them have priced it. Self storage overlock — securing a delinquent unit so a non-paying tenant can't remove their goods — looks like a five-dollar padlock and a two-minute job. The real cost is everything around that padlock: the walk, the wait, the confrontation, and the paperwork that has to line up for the lien process to hold. This article prices the manual overlock honestly, then looks at what chang

Cold and wet don't just make a storage lock annoying to use — they defeat it. Storage locks in cold weather fail in specific, repeatable ways: a keyway ices up and jams, exposed metal corrodes, and — on a smart lock — the battery quietly loses the capacity it needs to move the bolt. The unit is still locked; you just can't get in. This guide separates the failure points that any storage lock faces from the one that battery-powered smart locks add on purpose. Then it looks hon

Self storage security levels are easier to act on as a ladder than as a checklist. A facility is rarely "secure" or "insecure" — it sits at a tier, and the useful questions are which tier you're on and what it takes to climb. This guide sets out three: Good, Better, and Best, defined not by how much you spend but by what each tier actually removes as a risk. There's a twist at the top that most grading skips. Moving from Good to Better is about adding protection you're missin

Are there app-controlled storage unit locks? Yes — and a phone can open one four different ways: Bluetooth, WiFi/platform, cellular, and battery-free NFC. Most run on a battery inside the lock, and several charge a recurring subscription fee. One category does neither. This guide lays out all four for self storage, gives you the comparison table nobody else publishes, and answers what using one from an iPhone actually feels like. We build battery-free NFC locks, so we have a

The most useful fact about DaVinci Lock comes from DaVinci itself: "The DaVinci Lock® is not a smart lock nor does it require wifi or power to use" (DaVinci Lock Help Center). That single sentence resolves most of the confusion around the product — and it is the right starting point for anyone comparing self-storage lock systems. This guide covers what the system actually is, what it costs in 2026, and the one architectural question that decides whether it fits your operation

The short answer almost every guide gives — "buy a disc lock" — is correct, and it is also where most guides stop. A disc lock earns its reputation because its shackle is buried inside the lock body, leaving bolt cutters almost nothing to bite (Extra Space Storage). What the advice rarely tells you is how to judge one disc lock against another, which security claims are verifiable, and which part of your door is the real weak point. I design lock bodies for a living, so this

The purchase price of a smart lock is usually the smallest number in its story. Smart lock total cost of ownership is a ledger — hardware, installation, parts, labor, emergency response, administration — and the power architecture you choose decides which of those lines exist at all. Most published cost content stops at "consider various factors." This article computes instead: a line-item ledger, a five-year worked example for a 100-lock deployment, and every assumption stat