Smart four in one Door Lock with Fingerprint Model WEL-3900 Series

Smart four in one Door Lock with Fingerprint Model WEL-3900 Series

Smart four in one Door Lock with Fingerprint Model WEL-3900 Series

Fingerprint lock WEL-3900

The panel and handle are forged in pure copper. There are four ways to open the door: fingerprints, passwords, cards, and mechanical keys. When the power is insufficient, there will be a voice prompt, and a 9V alkaline battery can also be connected externally for temporary power supply.

feature of product

● Panel and handle are forged with pure copper, anti-corrosion and rust plating treatment
● The lock box has passed the UL and ANSI first-level lock certification of the United States
● The door lock has passed the Taiwan CNS60A fire protection certification
● Four door opening methods (fingerprint recognition, proximity card, touch password, mechanical key)
● Adopting European bank-grade 3D anti-counterfeiting fingerprint chip
● When opening and closing the door and the power is low, there will be voice prompts "Door is open", "Door is locked", "Please replace the battery"
● Sliding cover design, with hidden standard US regulations Spare mechanical key
● When you forget to replace the battery and run out of power, you can temporarily power up the door with an external 9V battery
● Users can add or delete cards, fingerprints, or set passwords with the mother card.
● Colors can be selected according to needs: fog silver, Black nickel, red copper, bright gold, bright silver

Product specifications

● Use 4 1.5V (AA) alkaline batteries
● Front panel waterproof and dustproof grade: IP54
● Applicable door thickness: 38mm~100mm
● RS-485 or dry contact output (optional)


Applicable place

Apartments, buildings, villas, schools, dormitories, companies
  • Smart four in one Door Lock with Fingerprint Model WEL-3900 Series

    Fingerprint lock WEL-3900

    The panel and handle are forged in pure copper. There are four ways to open the door: fingerprints, passwords, cards, and mechanical keys. When the power is insufficient, there will be a voice prompt, and a 9V alkaline battery can also be connected externally for temporary power supply.

    feature of product

    ● Panel and handle are forged with pure copper, anti-corrosion and rust plating treatment
    ● The lock box has passed the UL and ANSI first-level lock certification of the United States
    ● The door lock has passed the Taiwan CNS60A fire protection certification
    ● Four door opening methods (fingerprint recognition, proximity card, touch password, mechanical key)
    ● Adopting European bank-grade 3D anti-counterfeiting fingerprint chip
    ● When opening and closing the door and the power is low, there will be voice prompts "Door is open", "Door is locked", "Please replace the battery"
    ● Sliding cover design, with hidden standard US regulations Spare mechanical key
    ● When you forget to replace the battery and run out of power, you can temporarily power up the door with an external 9V battery
    ● Users can add or delete cards, fingerprints, or set passwords with the mother card.
    ● Colors can be selected according to needs: fog silver, Black nickel, red copper, bright gold, bright silver

    Product specifications

    ● Use 4 1.5V (AA) alkaline batteries
    ● Front panel waterproof and dustproof grade: IP54
    ● Applicable door thickness: 38mm~100mm
    ● RS-485 or dry contact output (optional)


    Applicable place

    Apartments, buildings, villas, schools, dormitories, companies