ZKTeco SL03-T420H Apartment Door Lock in Dubai, UAE
A Zigbee 3.0 digital lever mortise lock designed for apartment doors, managed residences, dormitories and short-term rental environments.
The system combines passcode, IC/NFC card, mobile HTML5 link and mechanical-key access with remote management capability through ZKBio CVSecurity SmartLock. FourTeck can help Dubai buyers verify door compatibility, management architecture, quantity, accessories and commercial requirements before purchase.
Smart apartment access built around managed credentials
The SL03-T420H is an electronic apartment lock for organizations that need to issue, change and manage door access more flexibly than a conventional mechanical-key process. It is especially relevant where residents, tenants, students, staff, cleaners or short-stay guests may require different credentials or time-limited access. ZKTeco positions the model for apartments, dormitories and short-term rentals, and its combination of local door hardware with Zigbee connectivity makes it suitable for managed properties that want a connected locking workflow.
For a buyer, the practical value comes from the mix of access methods. Dynamic or periodic passcodes can reduce dependence on physical key handover. IC cards and NFC-supported credentials give property teams a familiar electronic access method. Mobile HTML5 links provide another credential path, while a mechanical key remains available for physical override. The lock also records up to 500 local events and supports up to 100 users, 100 passcodes and 100 cards, giving a clear capacity reference when planning a building or accommodation project.
The door itself remains a critical part of the purchase. The standard configuration is intended for wooden swing doors from 35 to 60 mm thick and uses a European-standard mortise with a 55 mm backset, 72 mm axis distance and 24 × 235 mm faceplate. Buyers should therefore confirm door material, existing cut-out, handing, thickness and frame condition before placing a bulk order. A smart lock is not simply an electronic accessory; it is part of the physical door system, so correct fit matters as much as software capability.
For Dubai and wider UAE projects, FourTeck can help turn the product specification into a procurement checklist. That can include confirming whether the standard mortise fits the door, whether centralized management is required, which network or gateway components are needed, how many doors will be enrolled, what access methods will be used, and what support is expected during deployment. Buyers can review broader CCTV and access control solutions from FourTeck when the apartment lock is part of a larger security project.
Why connected apartment locks matter to property operations
The strongest benefit is operational control. A managed lock can reduce routine key handling while giving property teams more ways to issue, revoke and supervise access according to the building’s operating model.
Multiple credentials for different user types
A residential building rarely has only one kind of user. Residents may prefer cards or mobile access, cleaners may need controlled time windows, and short-term guests may need temporary codes. Supporting several credential types allows the access process to match the role rather than forcing every visitor into a single method.
Remote management potential
Zigbee 3.0 connectivity and ZKBio CVSecurity SmartLock support allow a connected management design. This can help operators review status and administer access more efficiently when the required software, gateway and network components are correctly planned.
Mortise security features
The standard mortise includes an anti-card auxiliary latch and deadbolt. The handle can be lifted to lock from inside or outside, helping the electronic access layer work with a defined mechanical locking action.
Long battery service interval
ZKTeco states approximately 2.5 years of battery life using eight AA alkaline batteries. Real battery duration depends on usage, network conditions and maintenance practices, but the long stated interval can reduce routine battery-change workload across larger properties.
Emergency power and mechanical override
A USB Type-C 5 V emergency power interface provides a practical recovery path when batteries are depleted, while mechanical keys provide another override method. These features should be included in the site’s operating procedure rather than treated as afterthoughts.
Alarms and local event awareness
The lock supports tamper, low-battery and continuous-authentication-error alarms, together with local event records. For a managed property, these capabilities can contribute to a clearer maintenance and incident workflow when staff know who is responsible for reviewing alerts and responding to access problems.
A lock designed for residential access administration
The core strength of this model is not one headline function but the way several capabilities work together. The 12-digit touch keypad supports passcode entry, including dynamic and periodic code workflows. Anti-peeping code input can accept up to 20 digits, helping users disguise the actual credential within a longer key sequence. IC card operation uses 13.56 MHz technology and supports NFC under ISO/IEC 14443A, making card-based access a practical option for resident or staff workflows.
The physical design uses an aluminum-alloy housing and a 2.5D tempered-glass front panel, with matt black and space gray listed as color choices. It uses a reversible lever arrangement for all-direction opening and is intended for wooden swing doors. The standard door-thickness range is 35 to 60 mm. These points are important for projects because the lock’s electronic features do not remove the need for a proper mechanical fit and correct installer preparation.
For centralized operation, the supported ZKBio CVSecurity SmartLock platform and Zigbee 3.0 connection provide the management layer. Final remote-control capability depends on the selected software and gateway architecture, so buyers should request a complete project bill of materials rather than ordering only the lock body when central management is required.
ZKTeco SL03-T420H specifications
The table below consolidates the manufacturer’s published parameters. Project accessories, software licensing, gateway requirements, installation materials and regional supply package should be confirmed during quotation.
| Specification | Published detail |
|---|---|
| Brand / Model | ZKTeco / SL03-T420H |
| Product type | Zigbee digital lever mortise lock for apartment scenarios |
| Housing / front panel | Aluminum alloy; 2.5D tempered glass; 12-digit touch keypad |
| Color options | Matt Black, Space Gray |
| Mortise type | European Standard |
| Mortise dimensions | 55 mm backset; 72 mm axis distance; 7.8 mm square spindle; 24 × 235 mm squared faceplate |
| Unlocking methods | Dynamic/periodic passcode, IC/NFC card, Mobile HTML5 Links, mechanical key |
| Capacity | 100 users; 100 passcodes; 100 cards; 500 local records |
| Card technology | 13.56 MHz IC card; NFC supported; ISO/IEC 14443A |
| Wireless communication | Zigbee 3.0, IEEE 802.15.4 |
| Software | ZKBio CVSecurity SmartLock |
| Power supply | 8 × AA alkaline batteries, not provided |
| Battery life | Approximately 2.5 years under vendor-stated conditions |
| Emergency power | USB Type-C, DC 5 V |
| Door compatibility | Wooden swing door; 35–60 mm standard thickness; reversible lever |
| Dimensions | Exterior 330.9 × 75.2 × 25.3 mm; interior 330.9 × 75.2 × 24.5 mm, lever excluded |
| Weight | 2.5 kg net; 3.0 kg gross |
| Operating environment | -20°C to 55°C; 10% to 90% RH, non-condensing |
| Certifications | CE, FCC |
| Package contents | Exterior assembly, interior assembly, mortise kit, 2 IC cards, 2 mechanical keys, studs and screws kit, installation template, installation guide |
Choosing the correct configuration starts with the door, not the software. Measure the door thickness and check the existing mortise preparation, backset and frame alignment. If the project requires centralized status monitoring or remote administration, also confirm the gateway and ZKBio CVSecurity SmartLock architecture needed for the number of doors and the building layout. Buyers should state whether the requirement is for a single residence, a floor, a building or a multi-building portfolio because the management design can change significantly with scale. FourTeck can review these details before quotation so the request includes the lock hardware plus the supporting components that are actually required.
What should you confirm before ordering?
For this product, installation fit and management scope are the two highest-risk decisions. A correct quote should identify both the physical door conditions and the desired credential-management workflow.
Door construction
Confirm wooden swing-door construction, 35–60 mm thickness, handing, edge condition, frame alignment and whether the standard European mortise preparation can be used without unsuitable modification.
Credential policy
Decide whether residents will use passcodes, cards, mobile links or a combination. Also define who can create temporary credentials, who keeps mechanical override keys and how lost cards or expired occupants will be handled.
Central management
If remote management is required, confirm the required Zigbee gateway coverage, software deployment, administrator roles and network path. These supporting components are project dependent and should be included in the design discussion.
Operational support
Plan battery replacement responsibility, spare cards and keys, administrator access, firmware maintenance, onboarding and offboarding procedures, and how staff will respond to tamper or low-battery alarms.
Commercial details
Share quantity, delivery location, target date, requested color, management requirement, installation scope and warranty expectations. This makes the quotation more useful than a request containing only a model name.
Where this apartment lock fits best
The model is most relevant when access changes often enough that mechanical key administration becomes inconvenient. Its mix of temporary credentials, card access and connected management can support several residential operating models.
Managed apartment buildings
For residential buildings with a property office or facility team, electronic credentials can make resident onboarding, maintenance access and lost-credential handling easier to structure. Central management should be designed around the building’s number of locks, gateway placement and administrative responsibilities.
Short-term rental operations
Dynamic or periodic passcodes can support guest turnover without repeated physical key exchange. The operating team still needs a clear procedure for code validity, emergency access, cleaning staff and battery checks.
Dormitories and staff accommodation
Card and passcode access can suit accommodation where occupants change by term, contract or shift cycle. A controlled enrollment process helps the site avoid carrying large numbers of duplicated physical keys.
Serviced residences
A serviced residence may need separate access for guests, housekeeping and maintenance. The lock’s supported credential types allow different operational workflows while preserving a mechanical override path.
Residential retrofit projects
The model may be considered when an existing wooden swing door can accept the specified mortise and thickness range. Retrofit buyers should prioritize a physical door survey before ordering multiple units.
SL03-T420H Multi-Method Access Control
The lock supports passcodes, IC/NFC cards, mobile HTML5 links and mechanical keys. This matters because apartment access is usually shared across several user groups. A long-term resident may prefer a card, a temporary guest may need a time-based code, a building operator may use a controlled mobile workflow, and the property should still maintain a protected physical override procedure.
The important design question is not which method sounds most modern. It is which methods fit the site’s operational policy. Property teams should decide how credentials are issued, how quickly they can be revoked, who can create temporary access, how identity is checked before enrollment, and what happens when a resident leaves. A good access policy turns the lock’s flexibility into a controlled process instead of creating too many unmanaged credential paths.
SL03-T420H Zigbee 3.0 and Remote Management
Zigbee 3.0 provides the wireless communication layer, while ZKBio CVSecurity SmartLock is the supported management software listed by ZKTeco. Together, they enable a connected apartment-lock deployment where administrators can manage locks through a wider system rather than treating each door as an isolated device. This can be particularly useful for buildings with many rooms or units because the operational cost of visiting every lock for routine administration can become significant.
A buyer should still plan the complete communication path. Lock location, wall construction, gateway placement, controller or software hosting, network segmentation and administrative access can all affect a larger deployment. FourTeck can discuss these items as part of the project scope. Remote capability should not be assumed from the lock alone; it depends on a correctly configured ecosystem and operational policy.
SL03-T420H Door Fit, Power and Recovery Planning
Smart-lock projects fail more often from poor physical preparation than from a lack of electronic features. This model has a clearly defined door range and mortise geometry, so installers should verify the door before any bulk purchase. The standard door should be a wooden swing type between 35 and 60 mm thick, using the specified European mortise dimensions. Existing door cut-outs may not match, especially where another lock family is being replaced.
Measure thickness, backset and existing mortise opening. Inspect frame alignment and latch engagement. Confirm whether door preparation work is required before installation.
The device uses eight AA alkaline batteries. The vendor states approximately 2.5 years of battery life, but maintenance teams should still define inspection and replacement intervals for their own usage pattern.
Keep controlled mechanical keys and know how to use the USB Type-C 5 V emergency power input. Staff should know the recovery procedure before a low-battery or access incident occurs.
What Buyers Should Check Before Purchase
The main purchase risk is ordering the right electronic model for the wrong door or incomplete management design. Confirm physical fit, access workflow and remote-management requirements together before a project quantity is approved.
Configuration Fit
Check wooden swing-door construction, thickness, mortise measurements, direction, finish and whether any carpentry or metalwork is needed. For retrofit projects, compare the existing lock cut-out with the published mortise dimensions before ordering.
Compatibility Check
Decide whether the project needs only local credentials or centralized Zigbee management. Confirm ZKBio CVSecurity SmartLock, gateway requirements, network access, administrator roles and any integration expectations before assuming remote functions are ready.
Availability and Warranty
Availability, color, project accessories, warranty route and delivery timing can vary by supplier status and quantity. Ask FourTeck to confirm the current commercial package rather than assuming a particular stock position or support term.
Quote Preparation
Provide quantity, door type and thickness, required access methods, desired color, centralized-management requirement, delivery location, installation scope and target date. For existing buildings, door photos and measurements can make the review more accurate.
FourTeck support for apartment-lock enquiries
FourTeck supports product enquiries across Dubai and the UAE with assistance for model selection, door-compatibility review, project quantity planning, quote preparation, delivery coordination and warranty guidance. Availability may vary based on supplier status, selected color, project quantity, management components and required accessories, so the safest purchasing approach is to confirm the current bill of materials before placing an order.
Dubai, Abu Dhabi, Sharjah and Ajman buying support
Businesses, property managers, accommodation operators and system integrators in Dubai, Abu Dhabi, Sharjah, Ajman and other UAE locations can contact FourTeck for product availability, configuration guidance and quote assistance. A project can range from one apartment door to a managed residence with many units, so the information required for a useful quote changes with scale.
For multi-door projects, share the number of doors, floor or building layout, door construction, required access methods and whether central management is expected. For a single-door requirement, the most important details are door thickness, mortise compatibility and the preferred credential method. FourTeck can also help place the lock within a wider physical-security plan through its UAE access control and surveillance portfolio.
GCC and Africa availability guidance
FourTeck also supports business-technology enquiries across selected GCC and Africa markets through its regional platforms and inquiry channels. Buyers in Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, Kenya, Uganda and the wider Africa region can request guidance for smart-lock and access-control projects, subject to country-specific supply, delivery and support arrangements.
Availability, warranty handling, software architecture and delivery options can vary by country, so regional buyers should identify the destination and project size early. For regional enquiries, visit FourTeck Africa, FourTeck Kenya, FourTeck Uganda or FourTeck Kuwait where relevant.
Other ZKTeco lock families buyers may consider
The correct alternative depends on whether the project is a residential apartment deployment, a hospitality room-lock system or a standalone electronic-lock requirement. ZKTeco’s product family also includes wireless hotel locks and electronic hotel locks. The alternatives below are useful discussion points rather than direct replacements; final suitability should be checked against door type, management software, credential method and project scale.
ZKTeco ZL600 Wireless Hotel Lock
Consider for hospitality-style room management where a wireless hotel-lock architecture and ZKBioHLMS support are part of the requirement. Door mortise and software design differ from the apartment model, so it should be evaluated as a separate solution.
ZKTeco ZL700
A wireless hotel-lock family option with Zigbee communication and stainless-steel housing. Best considered when the requirement is hotel-room management rather than a standard apartment workflow.
ZKTeco LH4000
An RFID hotel lock using ZKBiolock Hotel Lock System. This is more relevant for card-based hotel projects where a traditional electronic hotel-lock workflow is preferred.
Access control ecosystem
If the need extends beyond apartment doors, FourTeck can discuss access controllers, readers, CCTV, intercom and related physical-security components as part of a wider building solution.
Procurement guidance beyond the lock model
A smart-door-lock order can involve physical door compatibility, electronic credentials, batteries, gateway coverage, management software, project quantities and installation scheduling. FourTeck helps business buyers organize these variables before they commit to a model. The goal is to reduce avoidable purchasing errors such as ordering a lock that does not match the door, forgetting the management components required for remote operation or failing to define who will administer credentials after handover.
Assistance with product and project enquiries based on current supplier availability.
Review door size, credential method, user capacity and management requirements.
Prepare a more useful commercial request around quantity, options and delivery location.
Consider installation, network, gateway and property-management workflow before rollout.
Clarify the applicable warranty route and support expectations during quotation.
Connect physical-security requirements with wider FourTeck IT products and services when the project needs network or infrastructure support.
Common questions about the ZKTeco apartment lock
What is the SL03-T420H used for?
It is a Zigbee digital lever mortise lock designed for apartment scenarios. ZKTeco identifies apartments, dormitories and short-term rentals as suitable environments. It supports electronic credentials and connected management, making it useful where access needs to be issued or changed more frequently than with traditional mechanical keys.
Which door types are compatible?
The manufacturer specifies wooden swing doors with a standard thickness of 35 to 60 mm. The lock uses a European-standard mortise with defined backset, axis distance and faceplate dimensions. Existing doors should be measured before ordering, particularly for retrofit projects where the previous lock cut-out may not match.
How can users unlock the door?
Supported methods include dynamic or periodic passcodes, 13.56 MHz IC cards with NFC support, mobile HTML5 links and a mechanical key. The best mix depends on the building’s user policy. A managed property may use different credentials for residents, guests, maintenance teams and emergency access.
Does it support remote management?
Yes, the lock uses Zigbee 3.0 and supports ZKBio CVSecurity SmartLock. Remote management depends on the full system architecture, including appropriate gateway and software components. Buyers should confirm the planned number of doors, building layout and administrator requirements so the management design can be reviewed correctly.
How long do the batteries last?
ZKTeco states approximately 2.5 years using eight AA alkaline batteries. Actual service life can vary with access frequency, wireless conditions, battery quality and operating environment. Property teams should still establish a battery inspection and replacement schedule rather than relying only on the maximum published duration.
What happens if the batteries are depleted?
The lock includes a USB Type-C emergency power interface rated at DC 5 V and also supports mechanical-key access. These recovery methods should be documented for site staff. Mechanical keys should be stored securely, and responsible personnel should know the emergency power procedure before a battery-related access incident occurs.
Can FourTeck help with a multi-door apartment project?
FourTeck can help review quantity, door compatibility, access methods, centralized-management requirements, delivery location and project support expectations. For larger deployments, provide the number of units or rooms, building layout and desired operating workflow so the quote can consider the lock hardware together with relevant management components.
Is the lock available in Dubai?
FourTeck accepts enquiries for Dubai and UAE projects. Current availability, color options, delivery timing, warranty route and project accessories should be confirmed at the time of quotation because these commercial details can change with supplier status and order quantity. Contact the sales team with the required quantity and site details.
What information should I send for a quote?
Send the model, quantity, door type and thickness, preferred color, required credential methods, whether remote management is needed, delivery location, target date and installation scope. For retrofit sites, photographs and dimensions of the existing lock and door edge can help identify possible compatibility issues before purchase.
Need help planning the right apartment-lock deployment?
FourTeck can review the intended use, door type, required quantity, credential policy, management architecture, delivery location and warranty expectations before preparing a quote. This is especially useful for retrofit buildings and multi-door projects where lock fit and Zigbee coverage need to be planned together.
Share the model, quantity, door thickness, access methods, site location, centralized-management need and target project date.
You can also explore FourTeck UAE for related business IT and security solutions.