Dual Fingerprint. Dual Passcode. One Brilliant Lock for Grill Doors.
Grill doors demand a different kind of smart lock. Most locks only offer exterior access, leaving you locked out when stepping into the garden or reaching for keys in the dark. The Sciener G3R Duo solves this with true dual-sided intelligence.
Featuring fingerprint sensors on both the outside and inside, plus passcode keypads on both sides, you can now unlock your grill door from anywhere—without carrying keys. Whether you’re coming home or stepping out to the patio, simply touch the sensor or tap in your code. Built with weather-resistant materials and a rugged mortise construction, it’s the perfect fusion of convenience and durability for your grill door.
Key Features
1. Dual Fingerprint Sensors – Inside & Out
The G3R Duo’s signature feature is its dual fingerprint sensor design:
- Exterior Sensor: Quick, natural access when arriving home.
Interior Sensor: Unlock from inside when stepping out to the garden, patio, or parking area—no more searching for keys before heading out.
- Exterior Sensor: Quick, natural access when arriving home.
Both sensors use high-precision semiconductor technology with a ≥98.9% recognition rate, reading prints from any angle, even for dry, wet, or worn fingers. Each sensor stores multiple fingerprints, so the whole family can enroll on both sides.
2. Dual Passcode Keypads – PIN Entry on Both Sides
For the first time ever, enjoy passcode access from inside and out:
- 3D Face Recognition: The primary, fastest method for homeowners.
- Fingerprint Sensor: Hidden ergonomically in the handle for a natural grip.
Advanced Passcode Features:
- Anti-Peep Passcode: Enter up to 8 random digits before or after your real code to mask it from onlookers .
- Temporary Passcodes: Create codes that expire after a set time—ideal for cleaners or maintenance.
- Recurring Passcodes: Set codes that work only on specific days or times (e.g., weekly gardener access).
- One-Time Passcodes: Generate a single-use code for deliveries or urgent guest access.
3. Built Specifically for Grill Doors
Grill doors have different requirements than solid wooden doors. The G3R Duo is engineered to meet them:
- Compatible with Standard Grill Door Thickness: Fits 35mm to 70mm grill door profiles.
- Wide Temperature Tolerance: Operates reliably from 15°C to 55°C, ensuring performance in all seasons .
- Rugged Build: Durable aluminium alloy construction and stainless steel mortise withstands daily use.
4. 6 Versatile Unlocking Methods
While dual fingerprint and dual passcode are the stars, the G3R Duo offers total flexibility:
- Dual Fingerprint Sensor: Primary access when arriving home
- Dual Secure Passcode: Entry/Exit without keys—just type and go
- Mobile App eKey : Lock/unlock and monitor from anywhere via the Sciener app.
- RFID Card: Kids, elderly, guests, or backup users
- Smart Watch: Joggers, cyclists, hands-free convenience.
- Mechanical Key Backup: Reliable, old-school access when you need it.
5. Smart Home Integration
Connect the G3R Duo to the Sciener app (via Bluetooth) for complete control:
- Access Logs: See exactly who entered and when—perfect for monitoring family or staff .
- eKey Sharing: Grant digital access to family members remotely.
- Battery Monitoring: Receive low-battery alerts before they become an issue.
- Auto-Lock: Program the door to automatically lock after closing (adjustable timer) .
- Remote Access: Add the Sciener G2 Gateway (sold separately) to control your lock from anywhere in the world and integrate with Amazon Alexa/Google Assistant.
6. Security You Can Trust
- Lockout Protection: After multiple failed attempts, the lock temporarily disables to prevent brute-force attacks.
- Tamper Alarm: Triggers an alert if someone attempts to forcibly open or damage the lock.
- Emergency Power: USB-C port provides backup power if batteries run out.
- Mechanical Key Override: Always works, no matter what.
7. Battery Life & Low Battery Alert
- Power Supply: 4 AA Alkaline Batteries (standard, easy to replace).
- Battery Life: Approximately 8-12 months (based on 10 unlocks/day) .
- Low Battery Alerts: App notifications warn you well in advance.
- Emergency Backup: USB-C port for temporary power if needed.
Why Choose the G3R Duo for Your Grill Door?
✅ Designed for Grill Doors: Not a modified wooden door lock—engineered specifically for grill door requirements.
✅ True Dual-Sided Access: Fingerprint and passcode on both sides eliminate the need for keys inside the house.
✅ Unmatched Flexibility: Six ways to unlock means there’s always a method that works for every user and situation.
✅ Family-Friendly: Easy for kids, grandparents, and guests to use with cards, codes, or fingerprints.
✅ Proven Technology: Backed by Sciener’s global reputation and the powerful Sciener app ecosystem.
✅ Local Support: Enjoy peace of mind with Sciener’s after-sales service and warranty.
Upgrade to Smarter Property Security!
→ Ditch physical keys – Go 100% keyless.
→ Full remote control – Manage access from anywhere.
→ Military-grade protection – Keep rentals ultra-secure.
Ideal for:
- Homes
- Apartment buildings
- Grill doors
- Property rentals
Experience the freedom of dual-sided access. Fingerprint or passcode—inside or out—the Sciener G3R Duo puts you in control.
SPECIFICATIONS
DIMENSIONS
Front 333mm x 36mm x 25mm
Back 333mm x 36mm x 25mm
Weight 2.9KG
MATERIAL
Front panel Aluminum Alloy
Back panel Aluminum Alloy
Lock body Stainless Steel
OPERATION METHOD
2. Dual Passcode
3. Card
5. Smartwatch
6. Mechanical key x 2
Batteries & Voltage
Power supply 4 AA batteries required (included)
Stand-by current ≈35μA
Operating current ≈200 mA
Battery life Approximately 8-12 months
SMARTPHONE READY
Requires iOS (9.0 or higher) or Android (5.0 or higher) smartphones.
DIMENSIONS
- Front panel
- Back panel
- Screws
- Spindle
- Strike plate
- Strike box
- Lock body
- Front panel rubber pad
- Back panel rubber pad
- 4 AA Batteries






























