YRHAND Smart Cabinet Lock – APP, Keypad & RFID Access
YRHAND Smart Cabinet Lock – APP, Keypad & RFID Access
YRHAND Smart Cabinet Lock (Model A820-CT) — Keypad, RFID Card, Bluetooth & APP Control
Upgrade your home, office, or rental property security with the YRHAND A820-CT Smart Cabinet Lock. Built from durable aluminum alloy and packed with intelligent features, this lock delivers four convenient unlocking methods — keypad password, RFID card, Bluetooth, and smartphone APP — so you're never locked out and always in control.
Key Highlights
- 4 Ways to Unlock: Keypad password, Mifare1 RFID card, Bluetooth (within 5 m, no internet needed), and smartphone APP — choose the method that suits the moment.
- Dual Authentication Mode: Combine any two unlocking methods (e.g. APP + password, APP + card, or password + card) for a double layer of security on your most sensitive drawers, cabinets, or safes.
- Remote & Smart Home Access: Connect via a compatible gateway for global remote control. Works with Amazon Alexa and Google Assistant for seamless voice integration.
- Temporary Passwords & Cards: Issue time-limited credentials for visitors, guests, or short-term rental tenants — revoke access instantly from the app with no key handover required.
- Silent Mode: One-tap switch to silent operation — ideal for late-night access or quiet environments.
- Smart Security Alerts: Triggers a 30-second audible alarm after 4 consecutive incorrect password or card attempts. Low-battery warning (8 beeps + indicator flash) ensures you're never caught off guard.
- Type-C Emergency Power: Built-in Type-C port lets you power the lock externally if batteries are depleted.
- Long Battery Life: Runs on 3 AA alkaline batteries for approximately 12 months per charge.
- Fits Most Cabinet Doors: Compatible with wooden door/panel thicknesses of 9–22 mm.
- CE & FCC Certified — meets international safety and electromagnetic compliance standards.
Core Functions at a Glance
Diversified Unlocking
- Single-method: password only, RFID card only, Bluetooth only, or APP only
- Dual-authentication (choose any two for added security)
- Temporary password/card generation for flexible visitor access
Intelligent APP Control
- One-tap unlock; long-press to lock immediately
- Bluetooth range: up to 5 m (no Wi-Fi needed)
- Full remote access when paired with gateway (control from anywhere)
- Permission management — assign, edit, and revoke user access easily
Security Alert System
- 30-second alarm on repeated incorrect entries (4 failed attempts)
- Low-voltage warning with audible and visual indicators
- Silent mode for discreet operation at any hour
Ideal Use Cases
- Home Drawers & Cabinets: Protect valuables, important documents, or medications with dual authentication.
- Short-Term Rentals & Homestays: Issue and revoke temporary codes remotely — no physical key exchange needed.
- Offices & Shops: Grant tiered staff access, and cancel credentials instantly when employees leave.
- Personal Safes: Add a smart layer to your existing safe or secure storage box.
Technical Specifications
| Model | A820-CT |
| Material | Aluminum Alloy |
| Power Supply | 3 × AA Alkaline Batteries (~12 months) + Type-C Emergency Port |
| Connectivity | Bluetooth 5.0 (low power); Wi-Fi via Gateway |
| Card Type | Mifare1 High-Frequency RFID Card |
| Smart Home | Amazon Alexa, Google Assistant |
| Door Thickness | 9–22 mm wooden panels |
| Certification | CE, FCC |
| Country of Origin | Made in Mainland China |
For general guidance on evaluating smart home security devices, visit the U.S. Consumer Product Safety Commission (CPSC).
Frequently Asked Questions
Q: Does the YRHAND A820-CT smart cabinet lock require Wi-Fi to work?
A: No. The lock operates via Bluetooth 5.0 within a 5-meter range without any internet connection. Wi-Fi and full remote access (from anywhere in the world) require an optional compatible gateway device.
Q: How do I grant temporary access to a visitor or guest?
A: Through the YRHAND smartphone app, you can generate a time-limited temporary password or temporary RFID card credential. You set the expiry, and access is automatically revoked when the time period ends — or you can cancel it manually at any time.
Q: What happens if the batteries run out?
A: The lock provides a low-battery warning (8 beeps and a flashing indicator light) well in advance. If batteries are fully depleted before replacement, you can use the built-in Type-C emergency power port to externally power the lock and regain entry.
Q: Is the YRHAND smart lock compatible with Alexa and Google Assistant?
A: Yes. The A820-CT supports both Amazon Alexa and Google Assistant for voice-controlled locking and unlocking, provided the lock is connected via a compatible gateway.
Q: What door or cabinet thickness is compatible with this lock?
A: The lock is designed for wooden doors or panels with a thickness of 9–22 mm. If your cabinet door falls outside this range, customized accessories may be required — contact YRHAND support for assistance.