GateMaster 20-Channel Rechargeable 300–915MHz Frequency Smart Remote Duplicator

Tired of keeping track of different remotes for the garage, gate, shutter, or driveway entrance?
This 20-Channel Rechargeable Universal Remote Duplicator helps bring them all into one compact controller. It can copy and store up to 20 compatible remotes, so you do not have to carry a handful of separate devices or search through drawers when one goes missing.

It works with a wide 300–915MHz frequency range, supports many common remote types, and has a built-in memory function to help keep your saved codes stored safely.
Even better, it is rechargeable with Type-C charging, so there is no need to keep replacing small batteries.

It is a smart way to stay organized, keep a backup ready, and save money on expensive replacement remotes.

Why it’s useful:

• Stores up to 20 remotes in one compact device
• Helps save money by reducing the need to buy multiple replacement remotes
• Works with many common frequencies from 300–915MHz
• Rechargeable Type-C design means no constant battery replacements
• Built-in memory storage helps keep your saved codes secure
• 30–50m control distance for convenient everyday use
• Great for garages, gates, shutters, parking barriers, and backup access

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Helps Save Money On Replacement Remotes
Buying separate replacement remotes for every garage door, gate, or shutter can quickly become expensive. This 20-channel duplicator helps reduce that cost by letting you copy multiple compatible remotes into one reusable device.
It is also a smart backup option. Instead of paying for a new original remote every time one is lost, damaged, or needed for another family member, you can copy a compatible remote and keep access ready when you need it.

Stores Up To 20 Remotes
This remote includes 20 independent channels, allowing you to save multiple compatible remotes in one device.
Instead of carrying several controllers, you can keep everything organized in one small remote. Each channel works separately, so one copied remote does not interfere with another. Simply use the + and - buttons to choose the channel you want.

Wide 300–915MHz Frequency Range
With support for a broad 300MHz to 915MHz range, this duplicator works with many common remote frequencies, including popular options like 315MHz, 433.92MHz, 868MHz, and 915MHz.
This wider frequency coverage makes it useful for homes, garages, shops, warehouses, and properties with different access systems.

Rechargeable Type-C Charging
Forget about constantly buying small replacement batteries. This remote has a built-in rechargeable battery and charges through a modern 5V Type-C port.
The green light turns on while charging and turns off when charging is complete, so you know when it is ready to use.

Long 50m Control Distance
The built-in antenna provides a control distance of approximately 50 meters, depending on the environment.
This lets you open your garage, gate, or shutter from a comfortable distance before you reach it, which is especially useful when driving up to a driveway gate or warehouse door.

Built-In Memory Storage
The high-quality chip keeps your copied codes stored safely. Your saved data will not be lost during normal charging, and the remote also includes a recovery function if a code is accidentally cleared.
This is especially helpful when you have several remotes saved and do not want to repeat the setup process.

Channel Locking Function
Once a channel is set, you can lock it to help prevent accidental changes.
This is useful if the remote is kept in your pocket, It helps keep your copied channels organized and protected from accidental button presses.

Simple Setup & Operation

1. Clear The Selected Channel
Use the + and - buttons to choose the channel you want to program.
Press the required clear-code button combination for about 2 seconds. The LED display will flash quickly and show “--”, which means the old code has been cleared and the channel is ready for copying.

2. Copy Your Original Remote
Choose the channel using the + and - buttons.
Place your original remote close to the 20-channel duplicator. Then press the button on your original remote and the matching button on the duplicator at the same time for about 3 seconds.
When the LED display lights up and shows the channel number, the copy is complete. Repeat the same process for the other buttons. To copy a different remote, simply switch to another channel first.

3. Recover The Last Code
If you accidentally clear a code, the remote includes a recovery function.

Press the required recovery button combination for about 2 seconds. The LED will flash quickly and show “--”, meaning the last saved code has been restored.

4. Lock Or Unlock A Channel
After copying a remote, you can lock the channel to help prevent accidental changes.
Choose the channel, then press the required lock button combination for about 2 seconds. The LED will blink quickly to show the channel is locked.

To unlock the channel, repeat the same operation.

Compact Keychain Design
Measuring about 8.0cm x 4.0cm, the remote is small enough for everyday carry but still easy to use.
Keep it on your keys, in your car, at home, or as a spare at work. It is a simple way to reduce remote clutter while keeping access close by.
SPECIFICATIONS

Feature 1: 20 Channels

Feature 2: Copy multi-frequency

Feature 3: Rechargeable