Skip to content
Rainbow SkySMART LOCK MANUFACTURINGRequest a quote
← Back to Blog

SMART LOCK GUIDES / Sep 22, 2026

One-Time Password Cabinet Locks: Why Gyms and Pools Need Them

What Is a One-Time Password Cabinet Lock and Why Do Gyms Need It?

For shared locker rooms, a regular cabinet lock doesn’t work well. The SK-S28E solves this with a one-time password that resets after every use.

Zinc alloy one-time password cabinet lock

The Problem with Regular Locks in Shared Spaces

In a gym or pool, hundreds of people use the same lockers every day. If the same code stays active, someone can remember it and open someone else’s locker later. A one-time password lock changes this: the code works once, then resets automatically.

Cabinet lock front view

How the One-Time Password Works

  • User sets a temporary PIN code on the keypad.
  • Opens the locker with that code or RFID wristband.
  • When the door closes, the code resets automatically.
  • The next user gets a fresh locker with a new code.

Cabinet lock side view

Specifications of the SK-S28E

  • Model: SK-S28E
  • Material: Zinc Alloy
  • Unlock methods: One-time PIN code / RFID card
  • Keypad: Backlit (blue)
  • Dimension: 153 x 31 mm
  • Application: Gym locker / Changing room / Pool locker / Shared storage
  • Features: One-time password / Public mode / Easy install

Cabinet lock parts and battery

Best for High-Traffic Public Facilities

The slim 153 x 31 mm zinc alloy body fits wooden and steel cabinet doors. The backlit keypad works in dark changing rooms. The RFID wristband option is popular with pools and water parks.

Cabinet lock packaging

Getting Started

As an OEM/ODM manufacturer, we supply zinc alloy one-time password cabinet locks with custom logo, packaging and wristband options for distributors and project buyers. Contact us for samples, bulk pricing or OEM/ODM customization.

LET’S BUILD YOUR NEXT PROJECT

Your market. Your brand.
Our smart lock expertise.

Talk to our team about product selection, samples and OEM/ODM requirements.

Discuss your project
MINITEST