eufy Security Smart Lock C33 T85L0, Fingerprint Keypad and Built-in Wi-Fi

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Product guide

eufy Security Smart Lock C33 T85L0, Fingerprint Keypad and Built-in Wi-Fi

Keypad: The eufy Security Smart Lock C33 T85L0 combines fingerprint and passcode entry with built-in Wi-Fi and app control. It may suit buyers seeking several keyless ways to enter, though customer feedback flags battery use, connectivity, reliability, and fingerprint recognition as areas with mixed or negative reports.

At a glance

Fingerprint and passcode unlocking are listed alongside a back-lit keypad and anti-peeping password feature.
Built-in Wi-Fi and app control are described for remote access, notifications, access management, and event history.
The listing claims capacity for up to 50 fingerprints and 100 passcodes.
Manufacturer compatibility details specify door bore, backset, and thickness measurements to check before installation.

Price

$99.96Save 41%

Reference price: ~~$169.99~~

Price checked: Nov 14, 2026

View offer

Often bought together

eufy Security Smart Lock C220, Fingerprint Keyless Entry Door Lock | Built-in Wi-Fi, App Remote Control, Up to 8-Month Battery, Front Door Smart Lock Deadbolt, IP53 Waterproof, BHMA Grade 3

$89.99

eufy Security Video Smart Lock FamiLock S3 Max with Palm Vein Recognition | Internal Video Screen, BHMA Grade 1, Keyless Entry Front Door Lock, WiFi Deadbolt+2K HD Doorbell Camera,16GB Built-in Storage

$359.99

Pros and cons

Pros

Fingerprint, passcode, and keypad options offer alternatives to app-based access.
The listing describes app-based remote access, access management, notifications, and event history over built-in Wi-Fi.
Up to 50 fingerprints and 100 passcodes can be stored, according to the listing.

Cons

Customer feedback reports substantial battery use, with reports of eight AA batteries lasting only two to three months.
Feedback includes concerns about internal durability and Wi-Fi connection loss, as well as mixed reports of fingerprint recognition and reliability.

Technical specifications

18 specifications

Identity
Brand	eufy Security
Model	T85L0
Lock type	Deadbolt
Listed features	Anti-Peeping Password, Auto-Lock, Back-Lit Keypad, Fingerprint, Passcode Unlock

Connectivity and controls
Wireless connection listed	Wi-Fi
Control methods listed	App, Voice

Dimensions and installation
Form factor	Rectangular
Dimensions listed	7.24 x 6.06 x 5.12 inches
Weight listed	1.9 kg
Door compatibility dimensions	Bore Hole Diameter should be:2 1/8 in, Bore Hole Backset:2 3/8 in or 2 3/4 in, Door Thickness:1 3/8 in - 2 1/6 in.
Installation and handing claim	Installs in just 15 minutes, no drilling required. Works with left- and right-hand doors

Materials and appearance
Material listed	Metal
Color	Black
Finish	Painted
Style	Contemporary

Access, power and compatibility
Fingerprint capacity	Stores up to 50 fingerprints and 100 passcodes.
Power source claim	Powered by 8 AA Batteries
Smart-home compatibility note	It's not compatible with these services yet. It's currently compatible with eufy Video Doorbells and eufy Security Cameras.

What to know before buying

Listing details to confirm

The listing identifies the product as a C33 smart lock with a handle and calls it a deadbolt, while its A+ text calls it a Smart Lever Lock C33. The precise lock form is therefore inconsistent. Confirm the door hardware type and fit before buying. Apple HomeKit, IFTTT, and Matter are stated as unsupported at present. Customer reports of battery life and reliability vary, so plan for battery replacement and consider the reported connectivity and durability concerns.

What’s in the box

Included

Lock

Who is it for?

A good fit for

Households wanting fingerprint and passcode entry options with app access and built-in Wi-Fi.
Buyers whose doors match the listed bore, backset, and thickness dimensions.

Less suited to

Buyers who require Apple HomeKit, IFTTT, or Matter compatibility.
Buyers who need consistently long battery life or want to avoid the reported concerns about reliability, connection loss, and durability.

eufy Security Smart Lock C33 T85L0, Fingerprint Keypad and Built-in Wi-Fi · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.1 / 5 · 916 ratings

5 stars66%66%
4 stars10%10%
3 stars6%6%
2 stars5%5%
1 star13%13%

Customer feedback praises the lock's appearance and features, especially keyless entry and app control, but reports substantial battery use and concerns about durability and connection loss. Fingerprint recognition, reliability, and ease of use draw mixed experiences. These reports matter for a Wi-Fi lock intended for everyday entry, and the stated eight-AA power supply makes battery upkeep a practical consideration. The overall rating distribution leans positive, but includes a meaningful share of low ratings and does not identify why individual customers rated it as they did.

Positive themes

Customers praise the appearance, features, keyless entry options, and app control.

Negative themes

Feedback reports high battery consumption, including reports that eight AA batteries last two to three months.
Customers report some units breaking internally and Wi-Fi connectivity problems.

Mixed feedback

Fingerprint recognition feedback is mixed, with reports of both successful use at different angles and unreliable performance.
Customers differ on reliability and ease of use.

Frequently asked questions

What entry methods does the C33 list?

The listing names fingerprint, passcode, and keypad unlocking, along with app control. It also lists voice control.

How many fingerprints and passcodes can it store?

The listing says it stores up to 50 fingerprints and 100 passcodes.

What door measurements should I check?

The provided compatibility text specifies a 2 1/8-inch bore diameter, a 2 3/8-inch or 2 3/4-inch backset, and door thickness from 1 3/8 inches to 2 1/6 inches.

Does it work with Apple HomeKit or Matter?

The listing says it is not compatible with Apple HomeKit, IFTTT, or Matter yet. It names eufy Video Doorbells and eufy Security Cameras as compatible.