4 models
Keypad Locks Deadbolts Knobs and Handles for Retrofit Doors
The retrofit range. Each model replaces existing hardware with a screwdriver and no new holes, in four formats: keypad deadbolt, fingerprint deadbolt, knob and lever handle. Specify these when the door cannot be re-machined.
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 →
K4 Smart Handle Lock
5-in-1 lever handle lock that fits US standard doors
View specification →
K2 Smart Deadbolt Lock
Fingerprint deadbolt with 100-fingerprint capacity
View specification →How to choose
Specifying from this range
- Pick the format that matches the hardware already on the door: K1 and K2 deadbolt, K3 knob, K4 lever handle.
- The K1 is the only model here that needs no app and no Wi-Fi, which matters on doors outside network coverage.
- Fingerprint capacity varies sharply: K4 holds 20, K3 holds 40, K2 holds 100.
- Check the door hole on deadbolts. The K2 fits 54 mm holes and will not fit 38 mm.
| K1 Electronic Keypad Door Lock | Keypad deadbolt for doors with no Wi-Fi coverage |
|---|---|
| K3 Smart Knob Lock | Drop-in knob replacement with 0.5s fingerprint entry |
| K4 Smart Handle Lock | 5-in-1 lever handle lock that fits US standard doors |
| K2 Smart Deadbolt Lock | Fingerprint deadbolt with 100-fingerprint capacity |
FAQ
Keypad Lock questions
How many models are in the Keypad Lock range?
There are 4, listed in full on this page with their model codes.
Do these locks need an internet connection?
It depends on the model. Most run on Tuya or TTLock over WiFi and Bluetooth, but the K1 keypad lock is specified to work with no Wi-Fi and no app at all.
Can we order a mixed container across families?
Yes. Send your model mix and quantities and we will quote them together.
Is OEM or ODM available on this range?
Several models are explicitly specified for customized production to customer requirements. Confirm scope with our engineering team before tooling.
What information do you need to quote?
Door thickness, the existing hole size, the finish you want, the platform you standardise on and the quantity.
Tell us about the doors, not just the model
Door thickness, hole size, material and quantity are enough for us to shortlist and price.