K4 Smart Handle Lock
5-in-1 lever handle lock that fits US standard doors
The K4 is a fingerprint lever handle lock sized for US standard door preparations. It combines biometric fingerprint, keypad code, IC card, smartphone app and mechanical key in one handle, and installs as a straight replacement for an existing handle, lever or knob with a screwdriver. Fingerprint templates are held on the local chip rather than in a cloud account.
- 5-in-1 entry: fingerprint, keypad code, IC card, smartphone app and mechanical key
- Fingerprint templates stored on the local chip, so credentials are not exposed off the device
- 0.5 s fingerprint unlock, up to 20 fingerprints configured
- No handing adjustment and no extra drilling; works on left and right handed doors
- Anti-peep touch screen with virtual password entry and an alarm on repeated wrong codes
Suitable for: Buyers fitting out homes, apartments, offices and hotels on US standard door preparations, and distributors serving the retrofit channel.
Problems it solves
What this model is for
- Handle replacement projects where the door cannot be re-machined
- Offices and apartments that need temporary access for visitors without issuing keys
- Biometric data leaving the building through a cloud account
- No record of who entered a shared space and when
Typical applications: Homes, bedrooms and studies, Apartment buildings and offices, Hotels, closets and interior doors.
Specification
| Unlocking methods | Biometric fingerprint, keypad code, IC card, smartphone app, mechanical key |
|---|---|
| Fingerprint | 0.5 s unlock, up to 20 fingerprints |
| Credential storage | Local chip, unique algorithm |
| Door thickness | 35 mm (1-3/8 in) to 55 mm (2-3/16 in) |
| Handing | Left and right handed doors, no adjustment needed |
| Material | Zinc alloy, painted finish, black |
| Access codes | Temporary, permanent, one-time and recurring |
| Voice control | Alexa via WiFi gateway, sold separately |
| Installation | Screwdriver only, all hardware included |
| Placement | Indoor and outdoor installation |
Quality control
Zinc alloy bodies are painted for a smoother surface and consistent colour. Anti-peep entry, wrong-code alarm and handing-free operation are each function tested before packing.
Customization
Finish and packaging on request. A WiFi gateway is available separately for app and voice control. OEM and ODM scope TBC.
How it compares
The K4 is the lever handle version of the keypad range. Take the K2 when a deadbolt throw is required, the K3 for a knob retrofit, and the K4 when the opening uses a lever and the door is a US standard preparation.
Installation and use
Remove the existing handle and fit the K4 with a screwdriver using the included hardware. Enrol fingerprints, then use the app to set temporary, one-time or recurring codes per visitor and to review event logs.
FAQ
K4 questions
Which doors does it fit?
US standard doors with a thickness of 1-3/8 inches (35 mm) to 2-3/16 inches (55 mm), on wooden doors, interior doors, hotel and office doors.
Do we need to specify left or right hand?
No. There is no need to adjust the opening side and no additional drilling.
Where are the fingerprints stored?
On the local chip inside the lock, under a unique algorithm, which is what prevents the information leaving the device.
How many fingerprints does it hold?
Up to 20 different fingerprints, unlocking at about 0.5 seconds.
Can it work with voice control?
With a WiFi gateway, sold separately, it can be controlled as an Alexa voice control smart lock.
What stops someone reading the code over a shoulder?
The anti-peep touch screen accepts random digits before and after the correct password, and the lock alarms on repeated wrong entries.
What is the lead time and minimum order?
TBC. Confirm with our sales team.
Related
Other models in Keypad Lock
K1 Electronic Keypad Door Lock
Keypad deadbolt for doors with no Wi-Fi coverage
View specification →
K3 Smart Knob Lock
Drop-in knob replacement with 0.5s fingerprint entry
View specification →
K2 Smart Deadbolt Lock
Fingerprint deadbolt with 100-fingerprint capacity
View specification →Ready to price the K4?
Send your quantity, finish and door details. We quote from the factory.