YRHAND K3 Smart WiFi Lock Box – Fingerprint App Password Card
YRHAND K3 Smart WiFi Lock Box – Fingerprint App Password Card
YRHAND K3 Smart WiFi Lock Box – 4-in-1 Access Security Storage
Take full control of your property's access with the YRHAND K3 Smart Lock Box. Powered by both the TTlock and Tuya apps, this zinc alloy lock box gives you four convenient ways to unlock — via smartphone app, fingerprint, keypad passcode, or IC card. Manage who gets in, when, and for how long, all from the palm of your hand — no matter where you are in the world.
Key Features
- 4-in-1 Unlocking: Open via TTlock/Tuya app, fingerprint scan, passcode keypad, or IC card — maximum flexibility for you and your guests.
- Remote Access Management: Grant or revoke access remotely. Set permanent, one-time, timed, or recurring guest passwords to keep your property secure at all times.
- Real-Time Access Logs: Know exactly who accessed your lock box and when with cloud-stored unlock records — perfect for rental hosts, realtors, and property managers.
- IP65 Weatherproof Build: The durable zinc alloy body with IP65 waterproofing handles rain, humidity, and extreme temperatures without missing a beat.
- Large Internal Capacity: Spacious interior easily holds car keys, house cards, and 8–10 keys — larger than most competing key boxes on the market.
- Versatile Installation: Hang it on a door knob, mount it on a wall, or attach it to a door — suitable for both indoor and outdoor use.
- Smart Home Compatible: Works seamlessly with Tuya Smart and Google Assistant for full voice and smart home integration.
- Battery Powered: Runs on 4 x AAA alkaline batteries — no wiring required for a quick, clean installation.
- CE & FCC Certified for safety and compliance.
Specifications
| Model | K3 |
| App | TTlock / Tuya |
| Unlock Methods | App, Fingerprint, Passcode, IC Card |
| Smart Platform | Tuya, Google Assistant |
| Network | Wi-Fi |
| Material | Zinc Alloy |
| Color | Black |
| Panel Size | 165mm × 72mm |
| Power Supply | 4 × AAA Alkaline Batteries |
| Door Types | Glass, Wood, Steel, Stainless Steel, Aluminum, Brass |
| Data Storage | Cloud |
| Compatible OS | iOS 7.0+ / Android 4.4+ |
| Waterproof Rating | IP65 |
| Certification | CE, FCC |
| Country of Origin | Made in China (Guangdong) |
Ideal For
- Home & apartment owners managing spare key access
- Airbnb, short-term rental, and vacation property hosts
- Real estate agents needing flexible showing access
- Office, campus, and dormitory security management
Learn More About Smart Home Security
For guidance on securing your home with smart technology, visit the U.S. Consumer Product Safety Commission (CPSC) Home Security Resource.
Frequently Asked Questions
Q: What app do I use to manage the YRHAND K3 smart lock box?
A: The YRHAND K3 is compatible with both the TTlock app and the Tuya Smart app, available for free on iOS 7.0+ and Android 4.4+. Through these apps you can grant and revoke guest access, set timed or one-time passcodes, and view a full cloud-stored access log.
Q: Can I use this lock box outdoors?
A: Yes. The K3 is rated IP65 waterproof, meaning it is protected against dust and low-pressure water jets, making it suitable for outdoor mounting on walls, door frames, or door handles in most weather conditions.
Q: How many keys or cards can this lock box hold?
A: The YRHAND K3 has a generously sized interior that can comfortably hold 8–10 standard keys, car key fobs, access cards, and similar small items — making it larger than most competing key storage boxes.
Q: Does the YRHAND K3 work with Google Assistant or other smart home systems?
A: Yes! The K3 integrates with Tuya Smart and Google Assistant, allowing you to check status and control access using voice commands or through a broader smart home automation setup.
Q: What types of doors is this lock box compatible with?
A: The K3 is designed to work with a wide range of door types, including glass, wood, steel, stainless steel, aluminum, and brass doors. It can be mounted on a wall, hung on a door handle, or attached directly to a door surface.