TTLock DS2 Smart Door Sensor 2.4GHz | Real-Time Status Detection
TTLock DS2 Smart Door Sensor 2.4GHz | Real-Time Status Detection
Keep tabs on every door in your home or office with the TTLock DS2 Door Contact Sensor. Designed exclusively for the TTLock smart-lock ecosystem, this compact 2.4 GHz wireless sensor delivers instant, real-time door open/close status straight to the TTLock app on your smartphone — so you always know the state of your entryways, no matter where you are.
Made in Mainland China.
Key Features
- Real-Time Door Status Monitoring — Instantly know whether your door is open or closed through the TTLock app.
- Unlock Record Tracking — Automatically logs door events for a complete access history at your fingertips.
- Auto-Lock Support — Works with compatible TTLock smart locks that have an auto-lock function to trigger automatic locking once the door is closed.
- Ultra-Low Standby Power — Draws less than 5 µA in standby, maximising the CR2032 battery life up to 2 years.
- 2.4 GHz Wireless — Reliable, interference-resistant communication with your TTLock gateway or compatible smart lock.
- Compact & Discreet — Small ABS housing (41 × 27 × 11.5 mm sensor body; 41 × 10 × 11.5 mm magnet piece) fits neatly on virtually any door frame.
- Wide Operating Temperature — Performs dependably from −10 °C to +50 °C, suitable for both indoor and outdoor-adjacent installations.
- CE Certified — Meets European electromagnetic compatibility and safety standards.
Specifications
| Model | DS2 |
| Power Supply | CR2032 button battery (3 V) — battery removed for shipping; please source locally |
| Standby Current | < 5 µA |
| Detection Distance | < 22 mm |
| Working Frequency | 2.4 GHz |
| Material | ABS plastic |
| Sensor Body Size | 41 × 27 × 11.5 mm |
| Magnet Size | 41 × 10 × 11.5 mm |
| Operating Temperature | −10 °C to +50 °C |
| Battery Life | Up to 2 years |
| Certification | CE |
| Compatible Platform | TTLock App (iOS & Android) |
| Origin | Mainland China |
Compatibility Notice
The DS2 door sensor is not a standalone device. It must be paired with a compatible TTLock smart lock or gateway that supports adding a door sensor in the device settings. Before purchasing, please verify that your TTLock device lists "door sensor" as a supported accessory in its settings menu.
What's in the Box
- 1 × TTLock DS2 Door Contact Sensor
- 1 × Magnet piece
- Mounting hardware
- CR2032 battery not included (removed for shipping)
For general guidance on smart home security and access control best practices, visit the U.S. Consumer Product Safety Commission – Home Safety resource centre.
Frequently Asked Questions
Q: Will the TTLock DS2 door sensor work with any smart lock brand?
A: No. The DS2 is designed exclusively for the TTLock ecosystem. It is compatible only with TTLock smart locks and gateways that include a "door sensor" option in their device settings. Check your lock's TTLock app settings to confirm compatibility before ordering.
Q: Does the DS2 door sensor come with a battery included?
A: The CR2032 button battery is removed prior to shipping due to carrier regulations. You will need to purchase a standard CR2032 (3 V) battery separately and insert it upon arrival — these are widely available at electronics and convenience stores.
Q: How does the auto-lock feature work with the door sensor?
A: When paired with a TTLock smart lock that has a built-in auto-lock function, the DS2 sensor signals the lock the moment the door closes. The lock can then automatically engage its locking mechanism, ensuring your door is never left unsecured. Note that this feature is only available on TTLock devices that natively support auto-lock.
Q: How long does the battery last, and how do I know when to replace it?
A: Thanks to its ultra-low standby current of less than 5 µA, a single CR2032 battery can power the DS2 for up to 2 years under normal use. The TTLock app will display a low-battery notification when it's time for a replacement.