Zen Series 4 Digital Lock

The Zen Series 4 Digital Lock combines 3D Face Recognition, palm, fingerprint, RFID, PIN and key access with built-in Wi-Fi. View and speak with visitors live, then unlock remotely from the app without requiring them to press the bell.

₹33,300₹37,00010% OFF

Inclusive of taxes · Final quote confirmed on enquiry

Fingerprint
PIN
RFID
App
Face Recognition
Mechanical Key

Colour · Black

Models & options

Will this fit your door?

Door type: Single Door
Door thickness: 35–110 mm
Installation: Professional installation recommended

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Available on enquiryEst. delivery: 3–5 Days

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Key advantages

Highlights drawn from this product’s features and capabilities.

3D Face Recognition with memory for up to 20 …
Included with this model — confirm details when you enquire.
Motion sensor detects and scans a configured …
Included with this model — confirm details when you enquire.
Palm access
Included with this model — confirm details when you enquire.
360° fingerprint sensor with capacity for up …
Included with this model — confirm details when you enquire.
Up to 100 RFID cards; two included
Included with this model — confirm details when you enquire.

Product information

The Zen Series 4 Digital Lock offers multiple ways to access your home, including 3D Face Recognition, palm, fingerprint, RFID card, six-digit PIN and mechanical key. When a configured face approaches, the motion sensor detects and scans it to unlock the door. Use the Smart Life app to view and speak with visitors live, turn on video and unlock remotely without a bell press. Built-in Wi-Fi connects directly to the app without a gateway. You can receive photo notifications after more than three incorrect face, fingerprint or PIN attempts, and manage multiple app users. Additional security features include full automatic locking, an alarm if the door is left open, PIN hiding, low-battery alerts and a siren with mobile notification if someone tries to remove the lock. The lock supports single and double door setups; double doors require a tower bolt. Its 4200 mAh battery can be charged using the included Micro USB cable.

3D Face Recognition with memory for up to 20 faces
Motion sensor detects and scans a configured face as you approach
Palm access
360° fingerprint sensor with capacity for up to 100 fingerprints
Up to 100 RFID cards; two included
Up to 100 six-digit PINs
Mechanical key access; two keys included
Live audio and video with visitors through the app
Remote app unlocking without a bell press
Built-in Wi-Fi; no gateway required
Multiple app users; supports Android and iPhone
Photo notification after more than three incorrect face, fingerprint or PIN attempts
Siren and mobile notification if someone tries to remove the lock
Full automatic locking and door-left-open alarm
PIN hiding with extra digits before or after the PIN
Low-battery alerts
4200 mAh battery; Micro USB charging cable included

Door Thickness: 35–110 mm
Door Configuration: Single Door
Access Methods: Fingerprint, Mechanical Key, Mobile App Unlock, PIN / Passcode, Face Unlock, RFID Card, Palm Recognition
Low Battery Warning: No
Smart Features: Video Doorbell Integration, Video Call, Video Surveillance

Fit depends on door thickness, leaf type (single/double) and material. Values shown in the buying panel come from this product’s data — confirm on site before ordering.

Share door photos from both sides, approximate thickness, and whether the door is wood, glass or aluminium profile. We will confirm compatibility before you decide.

From product data

Door Thickness: 35–110 mm
Door Configuration: Single Door

Professional installation is recommended for a secure fit and warranty support.

Tell us your city, door or room type, and send clear photos. We guide supply-only or supply-and-install options depending on your location.

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Warranty details are confirmed with your quote. Enquire and we will share cover period and service support for this model.

Installation Made Simple

Professional installation is recommended for secure fit and warranty support.
Confirm door thickness, leaf type and material against the specs above.
Send clear photos, city and measurements so we can recommend supply, install or both.

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Not Sure This Lock Fits Your Door?

Send us a door photo and dimensions. Our team will recommend the right model — no online checkout, just clear guidance.

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FAQs

Answers relevant to this category — ask us on WhatsApp for model-specific detail.

A smart lock replaces or works with your existing door hardware so you can unlock with PIN, fingerprint, card, app or key — without relying only on a mechanical key.

It depends on the model. Many locks work offline with PIN and fingerprint; Wi-Fi or Bluetooth is only needed for remote app features. We’ll confirm connectivity for the product you choose.

Most digital locks give a low-battery warning well in advance. Emergency power (USB / Type-C) or a mechanical key override is available on many models so you’re never locked out.

Compatibility depends on door thickness, type (single/double), and material. Share a photo or measurements and our team will recommend a fit.

We recommend professional installation for a secure fit and warranty support. Zen Circuit can guide you or connect you with an installer for your city.

Use Enquire About This Product on the product page, WhatsApp us, or add items to your enquiry list. There’s no online checkout — we help you shortlist, quote and arrange supply or installation.