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Black rectangular smart lock with touchscreen keypad and fingerprint sensor, zinc alloy finish

eufy

eufy Security S230 Smart Lock Touch & Wi-Fi T8520 Black

SKU CH-T8J9-4RVRR

Fingerprint smart deadbolt unlocks in one second, connects via Wi-Fi and Bluetooth for remote app control, and includes a touchscreen keypad plus two physical keys

  • ProtocolWiFi
  • TypeSmart Lock
  • ColorBlack
  • App-EnabledYes
  • Amazon Alexa CompatibilityYes
  • Google Assistant CompatibilityYes
  • Fingerprint unlock in 0.3 seconds for instant entry
  • Wi-Fi connectivity enables remote control from anywhere via app
  • Auto-lock sensor secures the door every time it closes
  • BHMA tested to 250,000 cycles for over 30 years of use
  • IP65 rated zinc alloy and stainless steel frame withstands all weather

Fingerprint Unlock Speed

The eufy Security S230 Smart Lock Touch & Wi-Fi T8520 recognises a fingerprint in .3 seconds and opens the door in 1 second. It connects through Wi-Fi and Bluetooth so you can control the deadbolt from anywhere using the eufy Security app. The unit is BHMA certified and carries an IP65 weatherproof rating. Two physical keys are included for emergency access.

Upgrade From Key-Only Deadbolts

This lock replaces a traditional cylinder deadbolt and adds keyless entry via fingerprint, keypad, phone app or voice assistants. The jump is worth it when you want remote locking, automatic locking when the door closes and local fingerprint storage without cloud dependency. Installation takes roughly 10 minutes with a screwdriver.

Best for DIY Homeowners Wanting Remote Access

The S230 suits households that need multiple unlock methods and app control from any location. It is not for buyers who require a hardwired power source, integration with a proprietary home-automation hub not listed here, or a lock certified for fire-rated doors.

Highlights

  • Fingerprint unlock in 0.3 seconds for instant entry
  • Wi-Fi connectivity enables remote control from anywhere via app
  • Auto-lock sensor secures the door every time it closes
  • BHMA tested to 250,000 cycles for over 30 years of use
  • IP65 rated zinc alloy and stainless steel frame withstands all weather

Specifications

Brandeufy Security
ModelSmart Lock Touch & Wi-Fi T8520
ProtocolWiFi
TypeSmart Lock
ColorBlack
App-EnabledYes
Amazon Alexa CompatibilityYes
Google Assistant CompatibilityYes
ConnectivityBluetooth
Dimensions?6.26 x 2.83 x 1.03 inches
Weight3.1lb

Questions about this item

What are the exact dimensions and weight of the eufy Security S230 Smart Lock Touch & Wi-Fi T8520?

The lock measures 6.26 x 2.83 x 1.03 inches and weighs 3.1lb. It fits standard US deadbolt prep holes and requires a door thickness compatible with standard residential hardware.

How is the lock installed and which step do DIYers often miss?

Installation takes roughly 10 minutes with just a screwdriver. The step people skip is calibrating the auto-lock sensor so the bolt engages reliably every time the door closes.

What maintenance will the lock need over its 30-year rated life?

Replace the batteries when the app alerts you; if power dies completely, a portable charger on the exterior contacts provides emergency entry. The BHMA-tested mechanism is rated for 250,000 cycles with no lubrication required.

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