Name: Smart Lock C220
Brand: eufy
SKU: T8506111
Price: 169.99 USD
Availability: InStock
Rating: 4.83 (294 reviews)

Question 1

What is eufy Security Smart Lock C220?

Accepted Answer

The eufy Security Smart Lock C220 (model T8506) is a fingerprint smart deadbolt with built-in 2.4 GHz Wi-Fi for remote app control, without a separate bridge. You can unlock it with a fingerprint touch in under 1 second, the eufy Security app, keypad passcodes, physical keys, Apple Watch, or voice commands via Alexa or Google Assistant. Eight included AA batteries keep it running for around 8 months, depending on usage. In the app, you can share access with family and set passcode schedules for guests or cleaners, so a code only works during the times you choose. Notifications and event history let you check lock activity while you're away. The lock is BHMA Grade 3 certified and IP53 rated. It can also lock automatically after a set delay, but that feature runs on a timer rather than detecting whether the door is closed, so make sure the door is shut. The C220 fits most standard US and Canadian deadbolt doors; mortise locks, Apple HomeKit, Matter, IFTTT, and eufy HomeBase are not supported. Compared with the C210, it adds fingerprint access.

Question 2

Great for

Accepted Answer

Families arranging access for visitors and cleaners &mdash; It lets households give visitors or cleaners their own passcodes and set when those codes can be used, rather than sharing a family key or leaving guest access unrestricted.&nbsp;

Keyless believers who hate fumbling for keys &mdash; Fingerprint access unlocks the door with a touch in less than 1 second, so there is no need to search for a key during everyday trips in and out.

Homeowners replacing a standard deadbolt &mdash; It fits most standard US and Canadian deadbolt doors and connects directly to Wi-Fi without a separate bridge. Check the door dimensions before buying.

Households already using a eufy doorbell &mdash; The C220 can join app routines with a eufy doorbell, letting households manage the doorbell and lock in the eufy Security app; a HomeBase connection is not required.

Homeowners managing the front door while away&mdash; With the lock connected to home Wi-Fi, the app lets homeowners lock or unlock remotely, receive notifications, and review lock activity without being at the door.

Question 3

Not ideal for

Accepted Answer

Homes without reliable Wi-Fi at the front door &mdash; Remote app control and notifications depend on the lock's Wi-Fi connection. A weak signal can interrupt those features; keypad and physical-key entry provide other ways to get in.

Buyers who prefer charging a lock to replacing batteries &mdash; The Smart Lock C220 uses eight non-rechargeable AA alkaline batteries. Replace them when depleted; the bottom USB-C port is for emergency power, not battery charging.

Buyers wanting a lock and video doorbell in one device The Smart Lock C220 controls door access but has no built-in camera or video doorbell. A separate camera or doorbell is needed to see visitors.

Question 4

Is the Smart Lock C220 the same as the C210, the C33, or the Video Smart Lock S330?

Accepted Answer

No &mdash; they are four different locks. The Smart Lock C220 (model T8506) is a deadbolt with a fingerprint reader. The Smart Lock C210 (model T8502) is a deadbolt without a fingerprint reader. The Smart Lock C33 (model T85L0) is a handle-grip lever lock, not a deadbolt. The Video Smart Lock S330 (model T8530) is a deadbolt with a built-in 2K camera, and it is also a different product from the eufy 4G LTE Cam S330 security camera. When checking specs, accessories, or support articles, look for \"Smart Lock C220\" or model number T8506.

Question 5

What unlock options does the eufy Smart Lock C220 support?

Accepted Answer

It supports fingerprint recognition, the eufy Security app, keypad passcodes, physical keys, Apple Watch, and voice commands via Alexa or Google Assistant. The current product bullet describes fingerprint unlocking with a touch in less than 1 second. Apple Watch control does not mean the lock supports Apple HomeKit, Siri, NFC, or Apple Home Key.

Question 6

How many passcodes and fingerprints can the eufy Security Smart Lock C220 store?

Accepted Answer

Up to 50 fingerprints and 100 different passcodes. Individual passcodes can be disabled as needed, and the anti-peep feature lets you type random digits around your real code to hide it from onlookers.

Question 7

Are the Smart Lock C220 batteries rechargeable, and what happens when they run out?

Accepted Answer

No. The Smart Lock C220 uses eight non-rechargeable AA alkaline batteries, included in the box. They last around 8 months based on 10 keypad or app unlocks per day; actual battery life varies with usage. The app sends a low-battery alert below 20%.
Replace all eight batteries when depleted. If the lock has no power, use an included physical key or connect a power bank to the USB-C port on the bottom of the exterior lock for emergency unlocking. The USB-C port supplies temporary power only&mdash;it does not recharge the batteries. Existing access information is retained when the batteries are replaced, as long as the lock has not been reset.

Question 8

Does the Smart Lock C220 work with Apple HomeKit, Matter, IFTTT, or eufy HomeBase?

Accepted Answer

No. The C220 works with the eufy Security app, eufy doorbells and cameras, Alexa, and Google Assistant. It is not compatible with Apple HomeKit, Matter, or IFTTT, and it does not connect through eufy HomeBase or any Wi-Fi bridge &mdash; its Wi-Fi is built in and direct.

Question 9

What doors does the Smart Lock C220 fit, and how hard is installation?

Accepted Answer

It fits most standard US and Canadian deadbolt doors: door thickness 35&ndash;55 mm, cross bore diameter 38 mm or 54 mm, backset 2⅜ in (60 mm) or 2&frac34; in (70 mm), and a latch hole at least 25.4 mm deep. It is not compatible with mortise locks, and the distance from the cross bore center to the top of a handleset must be greater than 45 mm. Installation takes about 15 minutes without drilling on standard doors; if your latch hole is round, contact customer service for a round drive-in faceplate.

Question 10

Does the C220 have a camera or video doorbell?

Accepted Answer

No. The C220 has no camera and no display. For a lock with video, the Video Smart Lock S330 adds a 2K camera, and the FamiLock S3 Max adds a 2K HDR camera with a 4-inch display.

Question 11

Is the fingerprint reader fast and reliable?

Accepted Answer

The Smart Lock C220 recognizes a registered fingerprint in less than 0.3 seconds and unlocks with a touch in less than 1 second. Recognition time and unlocking time refer to different stages. Its self-learning fingerprint technology becomes more precise with use. Keep the sensor and fingers clean and dry; passcodes, the app, and physical keys provide alternatives if fingerprint recognition fails.

Question 12

How does the anti-peep passcode work?

Accepted Answer

Add random digits before or after the real passcode, keeping the full entry to no more than 12 digits. This helps obscure the code when a neighbor or visitor is nearby. Each family member, guest, or cleaner can have an individual passcode, and codes can be disabled separately in the app.

Question 13

What weather and temperatures can the Smart Lock C220 handle?

Accepted Answer

The exterior assembly operates from -22&deg;F to 158&deg;F (-30&deg;C to 70&deg;C) and carries an IP53 weather rating. eufy does not recommend using the lock outside these conditions.

Question 14

Can I give a visitor or cleaner access only at certain times?

Accepted Answer

Yes. In Manage Access, create an individual passcode and set its access schedule so a visitor or cleaner can enter during the times the household chooses, without sharing a family key. The schedule limits when that passcode can be used; app access is shared separately. A guest with app access can lock and unlock, while an administrator can also change settings and manage local access.

Question 15

Does the Smart Lock C220 lock automatically when the door closes?

Accepted Answer

The C220 offers countdown auto-lock, not door-closed detection. It uses a timer rather than sensing whether the door has closed, so make sure the door is shut rather than treating the timer as confirmation. Video Smart Lock S330 supports door-closed detection if that behavior is important to the household.

Question 16

What if the lock goes offline while I am away?

Accepted Answer

Remote app control and notifications require the lock's Wi-Fi connection. Check the home network and signal at the door; a weak signal can cause connection problems. Someone at the property can use the keypad or a physical key to enter. When someone is nearby, Bluetooth can be used to connect to the lock and change its network settings; it does not restore remote access without Wi-Fi.

Smart Lock C220

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