Smart Cylinder Lock Tuya Bluetooth Fingerprint Keyless Entry

Asia-Teco Smart Cylinder Lock — Keyless Entry for Your Home

Upgrade your home security with the Asia-Teco Smart Cylinder Lock (Model S1F/S1K), a Tuya-compatible smart lock that fits 60–90 mm door cylinders. Made from durable stainless steel, it replaces your existing lock cylinder in about 3 minutes — no drilling, no door modifications, and no professional installer needed.

6 Ways to Unlock

• Tuya App — control and monitor access from your smartphone
• Fingerprint (Model S1F) — fast biometric recognition with a false reject rate of just ≤0.15%
• IC Card — 13.56 MHz (M1/IC) contactless card access
• PIN Code (Model S1K) — store up to 50 unique passcodes
• Mechanical Key — traditional backup key always available
• Temporary Code — grant time-limited access to guests or service providers

Bluetooth & WiFi Connectivity via Tuya

Pair the lock directly with the Tuya Smart app over Bluetooth for nearby control. Connect a compatible Tuya Gateway (sold separately) to enable full remote WiFi access from anywhere in the world. View detailed visitor logs — who unlocked the door and exactly when — directly in the app.

Easy DIY Installation

The adjustable cylinder length (60–90 mm) is compatible with the vast majority of standard mortise-style wooden doors worldwide. The reversible handle direction means it works on both left- and right-handed doors. Swap out your existing cylinder in under 3 minutes with no special tools.

Always-On Reliability

• Powered by 3× AAA (LR03 1.5V) dry batteries with an ultra-low static current of ≤75 μA for extended battery life
• Emergency USB power input keeps the lock operational even when batteries are depleted
• Mechanical key override provides a final failsafe
• Operates in temperatures from -10 °C to 60 °C and humidity from 20%–93%

Key Specifications

Made in Mainland China.

For general guidance on evaluating smart home security devices, see the FTC's Smart Home Devices consumer guide.

Learn more: Smart lock

Frequently Asked Questions

Q: Do I need to replace my entire door lock to install this smart cylinder lock?

A: No. The Asia-Teco Smart Cylinder Lock is designed to replace only the existing lock cylinder in your mortise door lock. The process takes approximately 3 minutes and requires no drilling, no door modifications, and no professional installer. Simply remove your old cylinder and insert this one.

Q: Can I control this smart cylinder lock remotely when I'm away from home?

A: Yes — when paired with a compatible Tuya Smart Gateway (sold separately), the lock connects to your home WiFi network and can be controlled remotely through the Tuya Smart app from anywhere. Without a gateway, the lock is controllable via Bluetooth within short range.

Q: What happens if the batteries run out?

A: The lock features an emergency USB power input port — simply connect an external USB power bank to temporarily power the lock and unlock it. You can also use the included mechanical key as a backup at any time.

Q: Is this lock compatible with Alexa or Google Home?

A: The lock runs on the Tuya Smart platform, which supports integration with Amazon Alexa, Google Home, and other Tuya-compatible smart home ecosystems via the Tuya app and a compatible gateway.

Q: What door types and sizes is this cylinder lock compatible with?

A: The adjustable cylinder fits doors requiring a 60–90 mm cylinder length and a door thickness of less than 60 mm. It is designed for wooden mortise-style doors. The reversible handle direction makes it suitable for both left- and right-handed door configurations.