Interactive manual
DS3 Door Sensor
Add your DS3 door/window sensor to the TTLock app, stick it to the door, read the LED indicators, replace the batteries and fix the most common setup issues — without opening the PDF.
- Manual version
- V2026.1
- Recommended app
- TTLock
- Setup time
- 20–25 minutes
The DS3 Door Sensor pairs with the TTLock app — look for this logo in the app store. Add it under Door Sensor in the app menu, and connect it to a 2.4GHz Wi-Fi network — 5GHz is not supported.
Step by step
Set up & install
Five short tasks — learn the LED signals, add the sensor in the TTLock app, stick it to the door, and know how to change the batteries or reset it. Tick the steps as you go — your progress is saved on this device.
Troubleshooting
Fix a problem
Most DS3 issues come down to three things — a 5GHz Wi-Fi network, a sensor that never entered configuration mode, or a gap over 20mm between sensor and magnet. Start with the LED: it tells you what state the sensor is in.
Need more help?
Email us — we'll help
Pick the closest match below. Each email is pre-written with everything our support team needs to solve it fast — open it in your mail app, fill in the blanks and press send.
Still stuck?
Before contacting support, please collect:
- Order number and confirmation that you used the TTLock app
- Battery brand, type and age
- A photo of the sensor and magnet as installed, showing the gap
- A short video of the LED while you open and close the door
- An app screenshot and your router band (2.4GHz / 5GHz / dual)
Or write to us directly at enquiries@blusafesolutions.co.uk