1. Introduction
The Wehere M501 is an advanced smart door lock cylinder, designed as an upgrade to the M500 model, featuring a stronger motor for enhanced performance. This smart lock integrates seamlessly with Tuya, Smartlife, Alexa, and Google Assistant platforms, offering multiple convenient unlocking methods including fingerprint, Bluetooth app control, keypad, and traditional key. It is engineered for simple DIY installation and provides bank-level security for your home or office.

2. Key Features
- Enhanced Motor: Stronger motor compared to the M500 for improved performance.
- Multiple Unlocking Methods: Fingerprint, Bluetooth App (Wehere/Tuya/Smartlife), Remote Control (with gateway), Password (with keypad), and Mechanical Key.
- Smart Home Integration: Compatible with Tuya, Smartlife, Alexa, and Google Assistant.
- Automatic Locking: Customizable auto-lock settings via the app.
- Bank-Level Security: Utilizes OTP (One-Time Password) technology for secure access.
- Easy DIY Installation: Designed for quick installation without the need for drilling new holes.
- Durable Construction: Made from Aluminium Alloy and Copper with a sandblasting oxidation process for corrosion resistance.
3. Specifications
| Attribute | Detail |
|---|---|
| Model Number | M501 |
| Brand Name | wafu |
| Name | European Smart Lock |
| Material | Zinc Alloy, Aluminium Alloy, Copper |
| Finish Type | Powder Coated |
| Color Options | Sliver, Black |
| Weight | 600g |
| Power Supply | 3*CR123A DRY BATTERY (not included) |
| Endurance Capacity | Approx. 6 months (normal use) |
| Protection Level | No Waterproof |
| Connectivity | Bluetooth, WiFi (with gateway) |
| Ways To Unlock | App, Remote Control, Bluetooth, WiFi, Password, Fingerprint, Key |
| Special Features | Support Gateway, Auto-lock, Auto-unlock, Siri Unlock (for M500, check M501 compatibility) |
| Suitable Door Type | Steel Door, Wooden Door, Glass Door, Brass Door, Stainless Steel Door |
| Handle Direction | Direction Reversible |
| Certification | CE |
| Smart Home Platform | Alexa, Tuya, Google Assistant |
Dimensions

4. Setup and Installation
The M501 smart lock cylinder is designed for easy DIY installation. Please ensure your existing lock is compatible with this EU standard cylinder before proceeding. If unsure, it is recommended to send pictures of your current lock and cylinder to the manufacturer for verification.
4.1 Compatibility Check
- M501 is suitable for standard EU locks that allow cylinder replacement.
- M300 & M510 models are suitable for standard US locks (do not require cylinder change).
- M531 models are for EU locks and some Israeli locks (do not require cylinder change).
4.2 Installation Steps


- Prepare the Door: Ensure your door's mortise lock is ready for the new cylinder.
- Fix Gasket: Place the gasket (if provided) around the lock mechanism.
- Install Screw: Secure the initial screws for the lock body.
- Insert Lock Cylinder: Carefully insert the M501 smart lock cylinder into the mortise.
- Secure Lock Body: Once the lock body is properly positioned, insert and tighten the remaining screws to fix it in place.
4.3 Applicable Door Types

The M501 is compatible with doors featuring a single lock tongue or multiple lock tongues that are installed horizontally. It is not suitable for doors where the lock tongues are installed on the upper and lower parts of the door frame.
5. Operating Instructions
5.1 Unlocking Modes

- Tuya Zigbee Unlock: Unlock using the Tuya Zigbee app (requires compatible gateway).
- APP Shake Unlock: Shake your smartphone with the Wehere/Tuya app open to unlock.
- APP Slide Unlock: Slide to unlock within the Wehere/Tuya app interface.
- Manual Rotation Unlocking: Rotate the inner knob manually to unlock.
- Key Unlock: Use the provided mechanical key for traditional unlocking.
- Fingerprint Unlock: (Requires F100 Fingerprint Controller accessory) Unlock by scanning a registered fingerprint.
- Password Unlock: (Requires F101 Password Controller accessory) Unlock by entering a PIN code.
5.2 App Control (Bluetooth)

The lock can be connected to your smartphone via Bluetooth using the Wehere app (or Tuya/Smartlife app). To unlock via Bluetooth, the app must be open on your phone. Ensure Bluetooth is enabled on your device.
5.3 Remote Control (WiFi)
For remote control functionality over a network, a Tuya Bluetooth gateway (W100 or similar) is required. This allows you to unlock the door from anywhere with internet access. The W100 gateway uses the Wehere system and can both lock and unlock the device, and connect with F101 for remote PIN changes. A standard Tuya gateway can only unlock the device and cannot connect with F101.
5.4 Automatic Locking
The M501 supports automatic locking. You can configure the auto-lock time (e.g., 10 seconds after unlocking) within the Wehere app settings.
5.5 Siri New Function Unlock

The M501 (similar to M500) can be associated with Siri on iOS devices. By downloading the associated app and enabling Siri permissions, you can issue voice commands to Siri to unlock and lock the smart door lock.
6. Maintenance
- Battery Replacement: The M501 uses 3 CR123A 3.7V dry batteries. Due to the stronger motor, the battery may drain faster than the M500. Consider using rechargeable CR123A batteries for convenience. Replace batteries when the low battery indicator appears in the app or on the lock.
- Cleaning: Clean the lock's exterior with a soft, dry cloth. Avoid using abrasive cleaners or solvents that could damage the finish or electronic components.
- Key Maintenance: Keep mechanical keys in a safe place. If additional keys are needed, contact the manufacturer.
7. Troubleshooting
7.1 Frequently Asked Questions
- Q: Can the M501 be used for American locks?
- A: No, the M501 is designed for standard EU locks that require cylinder replacement. For US locks, consider models like M300 or M510.
- Q: Does the M501 replace the entire lock body or just a part?
- A: The M501 replaces only the lock cylinder to upgrade your existing lock to a smart lock.
- Q: How long does the battery last?
- A: Approximately half a year with normal use. The M501's stronger motor may lead to faster battery consumption compared to the M500.
- Q: Is it possible to open the lock from anywhere with internet using WiFi?
- A: Yes, but it requires a compatible Tuya Bluetooth gateway (e.g., W100) to enable WiFi functionality.
- Q: Does Bluetooth unlocking work automatically when I'm close, or do I need to open the app?
- A: The Wehere app must be opened on your smartphone to initiate Bluetooth unlocking.
- Q: What type of battery does this lock need?
- A: It requires CR123A 3.7V batteries (not included).
- Q: Can the cylinder close automatically?
- A: Yes, you can set an automatic closing time (e.g., 10 seconds after opening) within the Wehere app.
- Q: Can the cylinder open a lock with three lock tongues?
- A: If your lock has very strong or multiple lock tongues, you may need a stronger motor version. The M501 is an upgrade from M500, M521 from M520, and M531 from M530, all offering stronger motors.
- Q: What is the difference between W100 and a standard Tuya gateway?
- A: The W100 uses the Wehere system and can both lock and unlock the device, and connect with the F101 keypad for remote PIN changes. A standard Tuya gateway uses the Tuya system, can only unlock the device, and cannot connect with F101.
8. User Tips
- App Selection: The M501 smart lock is available in both TUYA and TTLock versions. Ensure you select the correct version that aligns with your preferred smart home ecosystem.
- Accessory Connection: Both fingerprint (F100) and keyboard (F101) accessories can connect to the Wehere app for management.
- Mobile Unlock: When using the Tuya or TTLock app, unlocking is performed directly through the mobile phone interface.
- Pre-Purchase Check: Always verify your existing lock's compatibility by sending pictures of your lock and cylinder to the seller if you are unsure. This prevents potential installation issues.
- Support Contact: If you encounter any questions or issues, please contact the seller or manufacturer for assistance before attempting returns.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided with your purchase or contact the manufacturer directly. Ensure you have your product model number (M501) and purchase details available when seeking support.
Manufacturer: Shenzhen Seamooncloud Technology Co., Ltd
Address: 2/F,B1 Tower of Jinshun Industrial ParkAnlang Anju Road,Henggang,Longgang, Shenzhen,China
Telephone: (+86)755-2605-2705