TTLock WiFi 2.4G Door Contact Sensor – Smart Lock DS3
TTLock WiFi 2.4G Door Contact Sensor – Smart Lock DS3
TTLock 2.4G WiFi Door Contact Sensor – Model DS3
Keep your home or office smarter and more secure with the TTLock DS3 WiFi Door Contact Sensor. Designed to work seamlessly with TTLock smart locks and access control systems, this compact sensor monitors your door's open/closed status in real time — sending instant notifications straight to your smartphone via the TTLock app. Whether you're at work, traveling, or just in another room, you'll always know the state of your door.
Key Features
- Real-Time Door Status Detection: Instantly detects and reports whether your door is open or closed, keeping you informed at all times.
- WiFi 6 Connectivity (2.4GHz): Supports 802.11 b/g/n/ax WiFi 6 for a stable, fast wireless connection — no extra hub required.
- TTLock Ecosystem Compatible: Works natively with TTLock smart locks and access control devices for a fully integrated smart entry system.
- Ultra-Close Induction: Induction distance of less than 20mm ensures precise, reliable detection with zero false readings.
- Battery Powered: Runs on 2× AAA high-performance alkaline batteries (3V) — no wiring needed, easy to install anywhere.
- Compact & Discreet Design: Slim dual-component form factor (70×40×19.5mm and 66×16.5×19.5mm) fits virtually any door frame without being obtrusive.
- No Harmful Chemicals: Contains no high-concern chemical substances for safe household use.
Specifications
| Model | DS3 |
| Network Standard | 802.11 b/g/n/ax (WiFi 6) |
| Wireless Frequency | 2.4GHz |
| Induction Distance | <20mm |
| Power Supply | 2× AAA High-Performance Alkaline Batteries |
| Voltage | 3V |
| Dimensions | 70×40×19.5mm / 66×16.5×19.5mm |
| Compatible Platform | TTLock App & Smart Lock System |
| Country of Origin | Made in Mainland China |
How It Works
The DS3 mounts in two pieces — one on the door frame and one on the door itself. When the door opens, the magnetic connection breaks and the sensor transmits a status update over your 2.4GHz WiFi network directly to the TTLock app. You receive an instant push notification and can view a full event log of all door activity.
Why Upgrade to a Smart Door Sensor?
According to the U.S. Department of Energy, smart home devices help homeowners manage energy use and improve security awareness. Adding a contact sensor to your smart lock setup ensures complete visibility over entry points in your home or business.
Learn more: Window security
Frequently Asked Questions
Q: Is the TTLock DS3 door sensor compatible with all TTLock smart locks?
A: Yes, the DS3 is designed to integrate directly with TTLock smart locks and access control systems via the TTLock app. Simply pair the sensor within the app to begin receiving real-time door open/close notifications.
Q: Does the TTLock WiFi door sensor require a separate hub or gateway?
A: No hub is required. The DS3 connects directly to your 2.4GHz WiFi network (802.11 b/g/n/ax WiFi 6), making setup straightforward without additional hardware.
Q: How long do the batteries last in the DS3 door contact sensor?
A: The DS3 is powered by 2× AAA high-performance alkaline batteries at 3V. Battery life will vary based on usage frequency, but the low-power design is optimized for extended operation between replacements.
Q: Can I use the TTLock door sensor on windows as well as doors?
A: While the DS3 is designed and optimized for use with doors in conjunction with TTLock smart locks, its magnetic contact mechanism is suitable for any entry point where the two sensor components can be mounted within 20mm of each other when closed.