Keyless Smart Padlock (Silver)

Compared with traditional padlock or combination lock or bluetooth padlock ,without key or password , computer/smartphone is needn't .FL-S3 fingerprint series backpack padlock product just need your finger to unlock.

  • [ Finger is the Key ]:

    Backpack lock ,just fingerprint touch to unlock/lock. Never lose your key again! Also don’t worry that the key is copied or the password is cracked.
  • [ Easy Operation ]:

    Stores 10 fingerprints, which are directly managed within thumbprint padlock. No computer/smartphone is needed.
  • [Automatic Recognition Technology]:

    When the backpack lock is in empty status,you can use any finger to unlock .When you set administrator account , you finger is key.
  • [ Small & Portable ]:

    Just 85g weight. backpack lock is convenient to carry.
  • [ IP65 Waterproof Padlock ]:

    Up to IP65 level travel backpack lock, prevent from the rain and dust efficiently.
  • [ 1 Second Unlock ]:

    Quick-recognition technology ,thumbprint padlock support to identify your fingerprint quickly.
  • [ Low Power Consumption ]:

    After full battery, backpack lock offering 3000 times lock/unlock actions.
  • [ Enhanced Security ]:

    Seamlessly designed, Zinc-alloy metal body construction and high quality stainless steel. Prevent from being pried or smashed or cut.

FL-S3 Smart  Backpack Lock Fingerprint Padlock

  • Without key or passwords,backpack lock only finger control, quickly and conveniently lock/unlock
  • Unique Automatic recognition experience, when backpack lock is  in empty status, you can use any finger to unlock, when you set administrator account, it is private
  • Support 10 sets fingerprint storage,smart backpack lock can be shared to needed people
  • Access control, backpack lock administrator fingerprint  identify function enhanced security of the thumbprint padlock
  • Fipilock  fingerprint locker lock for luggage,backpack,door,drawer,locker etc.
  • No computer is needed/High quality material.Travel backpack lock can prevent from being pried or smashed or cut

Detail information


fingerprint recognition padlock

Automatic Recognition,1 Second to Unlock

Fingerprint technology , quick recognition.When thumbprint  padlock is in empty status , you can use any finger to unlock, 

when thumbprint padlock is set administrator account , only the registered fingerprint can unlock

Security padlock

High Quality Safety Padlock

Backpack lock with high quality Zinc-ally case and high toughness steel shackle , travel backpack lock  take you high-level safety performance

weatherproof padlock

IP65 Waterproof  Padlock

Travel backpack lock has IP65 waterproof and dustproof function , prevent  rain and dust efficiently

Zinc-alloy fingerprint padlock

Smart Touchlock  Electronic Padlock

Smart lock padlock, just finger touch electronic padlock ,biometric fingerprint recognition support one second to unlock

smart door padlock

Widely Use

The thumbprint padlock can be as  luggage lock ,backpack lock ,school/Gym fingerprint  locker lock, bag padlock ,suitcase lock etc.

portable padlock

Compact Size,Portable Body

Small and portable ,just 85g weight,easy to carry and store

Padlock specification

FL-S3 fingerprint door lock FL-S3 Thumbprint Padlock Smart Suitcase Padlock

Usage method

luggage lock

  Check the Empty Status
  • When backpack lock is in standby status,press the button once,
  • If the blue light is on with a beep, it means the backpack lock is empty,you can registering the backpack lock directly,
  • If the blue and red light will flash alternately, it means the  backpack lock has administrator account.

travel backpack  lock

Set Administrator Account

  • When travel backpack lock is in standby status,press the button once, after a beep, the blue light is on,
  • Place the administrator account's finger on the fingerprint panel,the blue light is off with a beep. Then release the finger and place again. Repeat 10 times in the same step,
  • When the blue light is on with a long beep, then the light is off to the standby status.The administrator account setting is SUCCESSFUL.

thumbprint padlock

Set User Accounts

  • When thumbprint padlock is in standby status ,press the button , the blue and red light will flash alternately,it is in identifying status for identifying the administrator's fingerprint.Place administrator finger on the panel ,then the blue light is on with a beep,
  • Place the user account's finger on the fingerprint panel, the blue light is off with a beep. Then release the finger and place again. Repeat 10 times in the same step,
  • The blue light is on with a long beep ,then the light is off to standby status.The user account setting is successful.
fingerprint padlock


  • When backpack lock is in standby status, place the registered finger on the panel ,the blue light is on with 2 beeps,
  • then steel shackle will automatically pop up  from locking hole


  • When travel backpack lock is in unlocking status, insert the steel shackle  in the locking hole. The red will flash with a beep ,then the  light is off to standby status

keyless padlockReset Backpack Lock

  • When thumbprint padlock is in standby status,press the button until red light flashing, then release,it is in identifying the administrator's fingerprint status,
  • Put the administrator finger on the finger panel ,the red light is on with a long beep,
  • At last the light is off to standby status ,it indicated that the thumbprint padlock has been  successfully reset.

waterproof padlock


  • When touch the electronic padlock,the blue light will be flash ,it means the battery is in low power status,
  • Please use the original USB type-C cable to connect the backpack lock and adapter with 5V output

About us

About us

SHENZHEN WALSUN DIGITAL TECHNOLOGY CO.,LTD. founded in 2013, headquartered in Shenzhen, Guangdong, China. Walsun is the leading fingerprint solutions provider in China, focusing on the development and production of fingerprint technology products and embedded fingerprint solutions. 

At present, Walsun has 2 factories and R&D centers, multiple international marketing, and more than 200 employees. We attaches great importance to R & D design, including software development and hardware design. Walsun not only won the honor of Guangdong Province Enterprise of Observing Contact and Value Credit, but also obtained the invention patent of the fingerprint padlock, the U type lock invention patent and the utility model patent and software patent and appearance patent of many products, total hundreds of certification patents at home and abroad, and also got BSCI and ISO9001 international certification and SGS certification.

After years of efforts and development, Walsun has set up very close business relationships with the international shopping malls, supermarkets, trade agents and established the strategic partners relationship.

Walsun take the R & D as company's core competitiveness. Through innovation, keep improving the product design to meet the personalized needs of consumers. Walsun are striving to achieve the vision.

Customer reception

Walsun Fipilock customer reception

Walsun Fipilock customer Reception

Product Line

Thumbprint Padlock Product Line




Q1. May I customize the fingerprint lock to print my logo?
A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.

Q2. How many fingerprints the fingerprint padlock  can be registered?

A:The backpack lock can stores 10 fingerprints, including 1 administrator account and 9 user accounts.

Q3. Does your fingerprint padlock need key and passwords?

A: No, our thumbprint padlock travel backpack lock  just need place your personal fingerprint on the panel to unlock, without the any key or passwords.

Q4. How many times does the fingerprint padlock can be used after one fully charge?

A:The fingerprint padlock full battery can offer 3000 times lock/unlock actions.

Q5. Do your electronic padlock thumbprint lock include the waterproof and dustproof function?

A: Yes, thumbprint padlock travel backpack lock has IP65 level waterproof protection,and prevents the dust and rain efficiently.

Q6. What is the weight of your fingerprint padlock?
A: Just 85g weight travel backpack lock,  It’s convenient to carry.

Q7: Does the indicator of thumbprint padlock have any reminder?

A: Yes, thumbprint padlock have low voltage,lock & unlock remind function.

Q8: Does your fingerprint padlock have any other functions?

A: Yes, our FL-P4PRO model (Bluetooth padlock) thumbprint locker lock have APP and bluebooth functions to unlock.

Q9: Do you offer quality guarantee about fingerprint padlock?

A: Yes, we offer 1 year warranty to our backpack lock.

Q10: Can I use the fingerprint padlock as luggage lock or backpack lock or thumbprint locker lock?

A: Yes, the thumbprint padlock can be widely used in indoor/outdoor. For example,as door/gate padlock, bag padlock ,luggage lock, school/gym fingerprint locker lock ,suitcase padlocks ,bike padlock etc.