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The Spark SL-140 is a fully automatic smart lock for security doors. Open your door with face recognition, a fingerprint, a password, a card and the mobile app, and keep a mechanical key as backup. The built-in camera lets you see who is at the door and answer video calls from your phone. It is fully automatic: once you are recognised, the lock opens by itself. It connects to the Tuya Smart app over Wi-Fi, so you can control and monitor your door from anywhere.
One Lock for the Whole Family
Everyone uses the way that suits them: face recognition for you, a fingerprint for the family, a code for guests, a card for the cleaner and remote unlocking from your phone. Every entry is logged in the app, so you always know who came in and when.
See Who's at the Door
The built-in camera lets you check the live view, answer the door with a video call and review recordings from your phone — whether you are inside the house or away from home.
Check Your Door Before You Order
The SL-140 fits the 6068 mortise lock body used in most security doors:
- Backset: 60 mm (faceplate to cylinder centre)
- Centre distance: 68 mm (handle spindle to cylinder)
- Faceplate width: 24, 30 or 40 mm (all 240 mm long) — measure yours and choose the width above
Specifications
| Model | Spark SL-140 |
| Brand | Spark |
| App | Tuya Wi-Fi |
| Unlocking | Face · fingerprint · password · card · app |
| Camera | Built in |
| Video | Video call · video surveillance |
| Operation | Fully automatic · self-opening |
| Battery | 5000 mAh lithium |
| Material | Aluminium alloy |
| Front panel | 425 × 69 × 54 mm |
| Rear panel | 425 × 72 × 68 mm |
| Lock body | 6068 · 24 / 30 / 40 × 240 mm |
| Backup | Mechanical key |
| Emergency power | Type-C port for a power bank |
| Door | Security doors |
FAQ
Does the SL-140 work with the Tuya app?
Yes. It connects to the Tuya Smart app over Wi-Fi, so you can unlock remotely, add users and see the entry log from anywhere.
What happens if the battery runs out?
Connect a power bank to the Type-C port on the outside panel to power the lock and open the door, or use the mechanical key.
Will it fit my door?
The SL-140 is designed for security doors. Send us a photo of your door and current lock and we will confirm before you order.
