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Jiangsu Foachi Hardware provides a complete portfolio of indoor, outdoor, and multipurpose smart locks, engineered for residential, commercial, hospitality, and institutional applications. Our lineup includes fingerprint locks, keypad locks, card-access locks, app-controlled locks, and hybrid mechanical-smart models, covering every security requirement from home bedrooms to high-traffic building entrances.
To help buyers compare models quickly, this page offers a technical-first structure, featuring grouped specifications, application-based recommendations, and a detailed product gallery.
Below is the full series classification based on your product manual and images.
Ideal for: Bedrooms, study rooms, apartments, small businesses
| Model | Unlock Methods | Key Features | Power | Applications |
|---|---|---|---|---|
| J12 | Fingerprint, Password, Mechanical Key | Slim panel, silent latch | AA batteries | Bedrooms, interior doors |
| J15 | Fingerprint, Password, Card, App | Anti-peep keypad, steel structure | AA batteries | Rental units, offices |
| J16 | Fingerprint, Password | Minimalist aesthetic, fast sensor | AA batteries | Homes, apartments |
| J17 | Fingerprint, Card, Code | Budget version, compact | AA batteries | Dorms, small rooms |
Ideal for: Apartment entrances, villas, offices
| Model | Unlock Methods | Key Features | Power | Notes |
|---|---|---|---|---|
| F11 / F12 | Fingerprint, Password, Card | Wide panel, stainless surface | Li-battery | Heavy-use doors |
| F15 | Fingerprint, App, Card | Auto-lock, tamper alert | Li-battery | Main entrances |
Ideal for: Main doors, commercial buildings, high-traffic areas
| Model | Unlock Methods | Key Features | Power | Applications |
|---|---|---|---|---|
| DQ11 | Fingerprint, Password, Card, Key | Reinforced body, long handle | Li-battery | Home entrances |
| DQ12 | Fingerprint, Password, App | Anti-pry alarm, full-screen panel | Li-battery | Commercial |
| DQ15 | Fingerprint, Password | Metal frame, fast recognition | Li-battery | Offices |
| DQ23 | Fingerprint, Card, Code | Best-selling model | Li-battery | Residential + commercial |
Ideal for: Bedrooms, hotels, apartments
| Model | Unlock Methods | Notes |
|---|---|---|
| Q11 / Q12 | Fingerprint, Password, Key | Compact handle lock |
| Q15 / Q16 | Fingerprint, Password | Silent indoor mechanism |
Ideal for: Hotels, serviced apartments, offices
| Model | Access Type | Features |
|---|---|---|
| DJ11 | Card, Mechanical Key | RFID hotel system compatible |
| DJ15 | Card, Password | PMS integration |
| DJ23 | Card, App Optional | For hotel management systems |
Still suitable for cost-sensitive markets
| Model | Type | Notes |
|---|---|---|
| NJ12 | Mechanical Lock | Basic level door lock with upgrade options |
To help customers choose quickly, models can also be grouped by scenario:
Best options:
✔ J12, J16, J17
✔ Q11, Q12, Q15, Q16
Key benefits:
Ultra-quiet latch
Quick fingerprint wake-up
Slim handle designs
Safer than traditional bedroom locks
Recommended:
✔ F15
✔ DQ11, DQ12, DQ23
Features:
Stronger structure
Anti-pry alarm
App remote management
Emergency power port
Models:
✔ DJ11, DJ15, DJ23
Advantages:
RFID hotel card compatibility
Master card control
Multi-room management
Durable handles for high traffic
Outdoor-capable:
✔ F-series
✔ DQ-series
Features:
Weather-resistant panel
Anti-corrosion finish
High-stability chipset
(Condensed for web usability)
| Feature | J-Series | F-Series | DQ-Series | Q-Series | DJ-Series |
|---|---|---|---|---|---|
| Fingerprint | ✔ | ✔ | ✔ | ✔ | Optional |
| Password | ✔ | ✔ | ✔ | ✔ | ✔ |
| Card Access | Optional | ✔ | ✔ | Optional | ✔ |
| App Control | Optional | ✔ | ✔ | – | ✔ (hotel system) |
| Material | Zinc Alloy / Aluminum | Zinc Alloy | Zinc Alloy / SS | Zinc Alloy | Stainless / Alloy |
| Power | AA Battery | Lithium Battery | Lithium Battery | AA Battery | AA Battery |
| Application | Indoor | Entry | Entry/Commercial | Indoor | Hotels |
Ensure door thickness matches lock requirement (mostly 38–55 mm).
Use a level to align the panel and mortise.
Do not overtighten screws (may affect fingerprint sensor).
Check wiring harness placement before closing the panel.
Replace batteries every 6–12 months.
Clean fingerprint sensor with microfiber cloth.
Update app firmware regularly.
Lubricate the mortise annually (do not oil the fingerprint sensor).
Fingerprint not recognized: Re-register in multiple angles
Low battery alert: Replace immediately
Handle loose: Tighten side screws
Door not locking: Check mortise alignment
Yes. Stainless steel provides superior corrosion resistance and structural stability, ideal for entrance doors and high-traffic locations.
For durability: Stainless steel
For balanced cost + strength: Zinc alloy
For lightweight indoor use: Aluminum
High-quality zinc alloy and stainless steel smart locks are corrosion-resistant and do not rust under normal indoor or outdoor use.
For main doors: DQ-Series and F-Series
For indoor doors: J-Series or Q-Series.
A premium smart lock typically lasts 8–12 years, depending on usage and maintenance.
Stainless steel is stronger and more corrosion-resistant. Zinc alloy offers more design flexibility and lower price.
It is heavier and usually more expensive, but it offers the best durability.
Yes—models with sealed electronics (F-Series / DQ-Series) are suitable for semi-outdoor use.
Smart locks offer major convenience, but their main disadvantages include battery dependency, potential electronic malfunctions, and occasional fingerprint recognition issues. These risks can be minimized with high-quality hardware, stable firmware, and emergency power interfaces—features included in our F-Series and DQ-Series smart locks.
The most reliable smart lock is one that combines a strong mechanical mortise, fast biometric recognition, and a stable control system. Models such as our DQ-Series (DQ11 / DQ12 / DQ23) are engineered with reinforced lock bodies, anti-pry structures, and high-precision fingerprint modules, making them the most dependable for home and commercial entrances.
Smart locks can be opened using multiple methods depending on the model:
Fingerprint
Password / PIN code
RFID card
App / Bluetooth
Mechanical key backup
Our models support at least three unlocking methods, ensuring reliability even if the battery is low.
Police and security professionals recommend:
High-security deadbolt or mortise mechanisms
Anti-pry structures
Multi-point verification (fingerprint + PIN + key)
Our DQ-Series smart locks feature reinforced stainless steel mortise structures and anti-pry alarms, meeting these recommendations for entrance doors.
Yes. Most smart locks are designed for DIY installation with only a screwdriver.
Our smart locks come with:
Pre-drilled layout templates
Clear wiring guides
Step-by-step installation manuals
Most users install the lock in 15–25 minutes without professional tools.
Traditional locks can be “lock-bumped,” but most smart locks—including ours—use a motorized mortise, making bumping ineffective. Additionally, fingerprint and PIN access prevent unauthorized entry even if someone attempts mechanical bypassing.
A smart lock can be hacked if it uses outdated encryption or unsecured Bluetooth chips.
Our smart locks use:
Encrypted communication
Anti-tamper alerts
Offline operation modes
This greatly reduces the risk of digital intrusion.
Smart locks continue operating because they run on batteries, not household electricity.
In case of a low-battery situation:
Emergency USB power supply can be connected
Mechanical backup keys allow entry
This ensures that your door remains accessible even during a power outage.
A traditional lock offers basic mechanical protection.
A smart lock provides:
Keyless convenience
Activity records
Multiple unlocking methods
Higher security through biometrics
For entrances, a smart lock with a strong mortise (DQ-Series / F-Series) is superior.
For simple indoor doors, J-Series / Q-Series is a better value.
A quality smart lock lasts 8–12 years, depending on usage conditions.
Our models use durable zinc alloy or stainless-steel front panels and stable control boards, ensuring long-term reliability for residential and commercial applications.
