Eufy Security Smart Lock Touch & WiFi

The Eufy Security Smart Lock Touch & Wi-Fi (model T8520) is a battery-powered electronic deadbolt designed for residential entrance doors. Eufy states that the lock provides multiple access methods, including a built-in 3D fingerprint scanner, an illuminated touchscreen keypad, remote access through the Eufy Security mobile app, and physical backup keys. Unlike earlier models that required an external plug-in bridge, this version integrates 2.4GHz Wi-Fi directly into the unit, enabling remote locking, visitor management, and activity notifications from a smartphone. Eufy claims the exterior lock panel carries an IP65 weather-resistance rating, while biometric credentials are stored locally on device memory using AES-256 encryption rather than on cloud servers.

Who it suits

This deadbolt suits homeowners looking to eliminate traditional house keys in favour of fingerprint or passcode entry. It works well for busy households with children or trusted service visitors, as the mobile app allows owners to configure permanent, recurring, or temporary passcodes. The automatic locking feature also suits anyone prone to leaving the front door unlocked, securing the latch automatically after closing.

However, households using Apple Home or Matter-centric setups should skip this model, as Eufy restricts smart home ecosystem support to Amazon Alexa and Google Assistant. Renters should also pause before purchasing; installing this lock requires replacing the existing deadbolt hardware, which generally requires written landlord consent and may breach tenancy conditions. Always check your state or territory residential tenancies authority for rules regarding lock alterations.

Australian notes

Door hardware compatibility is the main consideration for Australian buyers. The Eufy Smart Lock Touch & Wi-Fi requires standard deadbolt hole dimensions: a 38mm or 54mm cross-bore hole, a 60mm or 70mm backset, and a door thickness between 35mm and 55mm. Many Australian homes feature integrated mortice locks, entrance locksets, or multi-point aluminium security doors that will not accept this form factor without drilling new openings or replacing existing door furniture.

The lock connects over 2.4GHz Wi-Fi networks and Bluetooth, but does not support 5GHz bands. Power is supplied by a 10,000mAh rechargeable lithium battery, which Eufy states lasts up to 12 months under typical household usage. If the battery goes flat unexpectedly, the lock can be unlocked via the supplied mechanical keys or powered via a portable battery pack connected to its exterior micro-USB port. Australian consumer purchases carry local statutory warranty rights under Australian Consumer Law, with products distributed through major local electrical and department retailers.