How to Verify the Exact Smart-Lock Model and Variant
Record the exact smart-lock model, market kit, package, door mechanism, and electronic prerequisites before trusting a compatibility claim.
Read guideBrowse by Brand
Smart-lock fit and compatibility guides covering Nuki products, models, and variants.
Record the exact smart-lock model, market kit, package, door mechanism, and electronic prerequisites before trusting a compatibility claim.
Read guideIdentify a Euro/DIN cylinder, measure both sides, and check the emergency function, projection, clearance, and operation required by an exact smart-lock model.
Read guideObserve whether the door turns a deadbolt or cylinder, pulls a latch, lifts a handle, or follows a multipoint sequence before checking smart-lock compatibility.
Read guideBuild a model-ready record of door thickness, backset, bores, cylinder dimensions, clearances, swing, and lock operation without treating one product’s measurements as universal.
Read guideCompare a replacement cylinder by profile, measured length, key function, and the exact smart lock it must operate.
Read guideCompare documented Nuki deadbolt, Ultra, and Ultra Nordics fit boundaries while keeping lift-handle operation and connectivity model-specific.
Read guideCompare regional cylinder labels by exact profile, market-specific product variant, lock case, measurements, and normal operation.
Read guideCheck the door preparation and operating details that affect a US or Canadian deadbolt replacement or retrofit before selecting a smart lock.
Read guideIdentify the cylinder profile, record each side and its key function, and carry the right details into an exact smart-lock compatibility check.
Read guideDiagnose a smart lock that turns a key but cannot complete a lift-up-handle, latch-pull, hookbolt, or multipoint sequence.
Read guideChoose the hub, bridge, border router, keypad, door-position sensor, or battery required by an exact lock feature.
Read guideDetermine whether a mortise door needs a cylinder turn, latch pull, handle movement, or a different replacement path.
Read guideCompare the panels, lock points, handles, and manual actions that make patio and special-door smart-lock fit model-specific.
Read guideRecord which way a door moves, which panel is active, what clears the frame, and the full lock sequence before checking a smart-lock model.
Read guideSeparate a smart lock fitted to a door from a product designed for glass or gates and from an apartment-building intercom opener.
Read guideSeparate a key or emergency-access issue, a door-position sensor reading, and an app-reported lock state.
Read guideCheck whether a smart lock can complete a multipoint sequence or whether lifting the handle and engaging the bolts must remain manual.
Read guideRecord the locking points, measurements, door operation, and safety functions of a multipoint system before asking whether a specific smart lock can operate it.
Read guideRecord the exact door, lock, market, door-state feature, accessory, and ecosystem requirements before choosing a smart-lock purchase path.
Read guideCheck whether an outside key can operate while a key remains inside, and distinguish that behavior from other cylinder functions.
Read guideReach a useful compatibility verdict by comparing one exact lock model with one measured door across fit, operation, and ecosystem support.
Read guideCompare an inside retrofit, replacement cylinder, adapter, or full replacement when the current door does not match a smart lock's requirements.
Read guideTrack model, market, source, firmware, and door conditions so an old compatibility result is not mistaken for a current guarantee.
Read guideCollect the profile, door operation, cylinder dimensions, key behavior, clearances, and product variant needed for a useful compatibility check.
Read guideRecalibrate a Nuki Smart Lock on site and understand why a remote lock command cannot prove the door is secure.
Read guide