Smart Door Lock Fingerprint Both Sides
Quantity
Delivery & Shipping
Order processing — Orders are processed within 1 to 3 business days of payment clearing. Business days are Monday to Friday, excluding public holidays.
Delivery time — Allow 7 to 10 business days after dispatch. Orders ship from our warehouse in Bangkok, Thailand.
Where we ship — Australia · United Kingdom · United States
Shipping cost — Free on every order, no minimum spend, to all three countries. Import duties or taxes may be charged by your own country on delivery.
Returns & Refunds
Change of mind — You have 14 days from delivery to return an unused lock in its original packaging, with all accessories, cards and keys. This applies in every country we ship to.
Your statutory rights — On top of that, UK customers have a 14-day right to cancel, and Australian customers the consumer guarantees under the Australian Consumer Law, which cannot be excluded. Where the law gives you more than our 14-day policy, the law wins.
Return postage — Paid by you for a change of mind. Paid by us if the item is faulty, damaged on arrival, the wrong item, or not as described.
Refunds — To the original payment method, within 14 days for a UK cancellation and 10 business days otherwise, after we receive and check the return.
Backset CalculatorTwo questions, about a minute — find the exact mortise for your door
Two questions, about a minute. Keep a tape measure handy.

Where is this lock going?
This is a door lock. For a gate, our SL-G1 has a 34 mm panel made for narrow gate uprights and fingerprint readers on both sides.
Measure from the faceplate of your existing mortise to the centre of the square spindle hole. What does it read?
60 mm backset, 85 mm centres. This is the one most Australian doors take.
45 mm backset, 85 mm centres.
If your door slides, order the 3585 hook bolt version instead — a straight bolt will not hold on a slider.
If your door slides, order the 2885 hook bolt version instead.
A straight bolt has nothing to grip on a sliding door. Measure your backset, then order the hook bolt version of that size — 2885 hook or 3585 hook.
Measure from the faceplate to the centre of the square spindle hole. The sizing guide shows it with a diagram.
Not sure at any point? Open the full sizing guide, or email us a photo of your door edge with a tape measure across it and we will tell you exactly what to order.
Guides and installation
Check the size, then follow the guide
A gate upright is narrower than a door, so the panel width is what decides here, not a mortise code. Check the drawing against your upright, then confirm the thickness.

Not sure which option you have? Send us a photo of your door edge with a tape measure across it and we will tell you which one to order.
Technical detail
Specifications
Everything the manufacturer publishes, including the limits. Tap a row to open it.
Full specifications
| Model reference | SL-G1 (manufacturer ZHD-G23) |
|---|---|
| Weather rating | IP66 — dust-tight, protected against powerful water jets |
| Unlock methods | Fingerprint (both sides), keypad code, RFID card, mechanical key. App on the Tuya and TTLock versions |
| Dimensions | Keypad 170 × 58 × 35 mm · rim lock body 130 × 100 × 42 mm · keeper 100 × 40 × 35 mm |
| Fit thickness | 20–65 mm |
| Door and gate types | Steel, timber, stainless steel |
| Handing | Reversible |
| Body material | Zinc alloy |
| Colour | Black and grey |
| Power | Dry batteries |
| Encryption | AES-128, anti-tamper alert, anti-peep keypad |
| Connectivity | Bluetooth and Wi-Fi on the app versions. Gateway supported |
| Manufacturer certification | CE, FCC, RoHS |
What comes in the box
- Front and rear lock panels
- Waterproof mask and silicone sealing pad
- RFID cards
- Mechanical keys
- Screw and fixing kit
- Instruction manual
Read this before you order
The version in stock is the standard keypad model — no app. If you want Tuya or TTLock app control on a gate, message us first so we get you the right unit. Ordering this one and expecting your phone to open it will disappoint you.
IP66 is a weather rating, not a security rating. It says nothing about how hard the lock is to force. On an exposed gate, pair it with a gate frame and hinges that are worth locking.
Voice prompts. The Tuya version speaks nine languages including English. The TTLock version is English only.
Voice assistants need a gateway and are only available on the app versions.
CE, FCC and RoHS marked, not Australian certified. Ask us before ordering if you need compliance paperwork.
Before you buy
Questions people ask about this lock
Fitting and measurement questions in depth live in the sizing guide. How to choose between our five types is in the buying guide.
Can I really leave this out in the rain?
That is what IP66 means and what the manufacturer states — direct rain and sun. It is the reason to choose this lock over the rest of the range.
Will it fit a steel gate upright?
The panel is 34 mm wide, which is narrow enough for most steel and aluminium gate uprights. Measure the flat face of your upright before ordering.
Does it open from the inside without a key?
Yes — there is a fingerprint reader on the inside face too, which is the whole point on a gate.
Can I let a delivery driver in?
On the app versions, yes: issue a code valid for an hour. The standard version in stock has no app, so you would set a permanent or shared code instead.
What about the summer heat?
It is built for outdoor use, but no lock enjoys full afternoon sun in a Queensland summer. Mounting it on a shaded face of the gate will extend the life of the seals and the batteries.