1. Introduction
The Lazmin Universal 433MHz 3-Key Clone Remote Control Key is designed to duplicate signals from existing fixed-code remote controls. This device allows you to conveniently operate various intelligent control systems such as electric gates, garage doors, and other compatible machinery. Its compact design and robust construction ensure reliable performance.

This image illustrates the versatility of the Lazmin Universal 433MHz Remote Control Key, demonstrating its compatibility with various intelligent control systems such as electric gates, garage doors, and other automated machinery.
2. Safety Information
- Keep the remote control out of reach of children to prevent accidental operation or ingestion of small parts.
- Do not expose the remote to water or excessive moisture.
- Avoid dropping or subjecting the remote to strong impacts.
- Ensure the remote is used within its specified operating range and frequency (433MHz) for optimal performance and safety.
- Dispose of batteries responsibly according to local regulations.
3. Product Overview
The Lazmin Universal Remote Control Key features a sleek design with three distinct buttons (A, B, C) for programming different functions. An LED indicator light provides visual feedback during operation and programming.

This image provides a detailed view of the Lazmin remote control, highlighting its three programmable buttons labeled A, B, and C. An example overlay suggests typical functions such as 'Open', 'Close', and 'Suspend' for controlled devices. The remote uses a CR2016 button battery.
Key Features:
- 3 Programmable Keys: Each button (A, B, C) can be programmed with a separate code.
- 433MHz Frequency: Compatible with most fixed-code 433MHz remote controls.
- Compact and Lightweight: Designed for portability and ease of use.
- Durable Construction: Made from robust plastic and metal casing.
4. Setup: Cloning Your Remote
This remote control is a copy-type device, meaning it duplicates signals from an existing remote. Ensure your original remote operates on a 433MHz fixed code frequency for compatibility. Rolling code remotes are generally not compatible.
Step 1: Clear Existing Codes
- Press and hold buttons A and B simultaneously on the clone remote.
- Keep holding them until the LED indicator flashes rapidly (approximately 2-3 seconds).
- While still holding button A, release button B.
- Press button B three times consecutively. The LED will flash rapidly again.
- Release all buttons. The LED will turn off, indicating that all existing codes have been cleared. If you press any button now, the LED should not light up.
Step 2: Clone New Codes
- Place your original remote control and the clone remote control side-by-side, as close as possible.
- Press and hold the button on your original remote that you wish to clone.
- Simultaneously, press and hold the corresponding button (A, B, or C) on the clone remote where you want to store the code.
- Keep both buttons pressed until the LED on the clone remote flashes steadily (this may take a few seconds). A steady flash indicates successful cloning.
- Release both buttons. Repeat this process for each button you wish to program.
Step 3: Recover Cleared Codes (Optional)
If you accidentally clear codes and wish to restore them, follow these steps:
- Press and hold buttons C and B simultaneously on the clone remote.
- Keep holding them until the LED indicator flashes rapidly.
- Release both buttons. The previously stored codes should now be restored.

This diagram visually guides users through the essential steps for programming the Lazmin Universal Remote Control. It details how to clear existing codes, copy new codes from an original remote, and optionally recover previously cleared codes, ensuring proper setup for various devices.
5. Operating Instructions
After successfully cloning the desired codes, operating the remote is straightforward:
- Point the clone remote control towards the receiver of the device you wish to operate (e.g., garage door opener, gate motor).
- Press the corresponding programmed button (A, B, or C) to activate the linked function.
- The remote offers a control distance of up to 100 meters in an open environment. Actual range may vary depending on obstacles and interference.

This image shows the Lazmin Universal Remote Control being held in a hand, aimed at a garage door, illustrating the practical application of the device for controlling automated entry systems.
6. Maintenance
Battery Replacement
The remote control is powered by a CR2016 button battery. If the remote's range decreases significantly or the LED indicator fails to light up, it may be time to replace the battery.
- Carefully open the remote control casing.
- Remove the old CR2016 battery.
- Insert a new CR2016 battery, ensuring correct polarity (+/-).
- Close the remote control casing securely.
Cleaning and Storage
- Clean the remote control with a soft, dry cloth. Do not use liquid cleaners or abrasive materials.
- Store the remote in a cool, dry place, away from direct sunlight and extreme temperatures.
7. Troubleshooting
| Issue | Possible Cause | Solution |
|---|---|---|
| Remote not working after cloning | Incorrect cloning procedure; incompatible original remote; low battery. | Ensure original remote is 433MHz fixed code. Repeat the cloning process carefully. Replace battery. |
| Short operating range | Low battery; environmental interference; physical obstructions. | Replace battery. Reduce distance to receiver. Ensure clear line of sight. |
| LED indicator does not light up | Dead battery; remote is cleared of codes. | Replace battery. If codes were cleared, re-clone them. |
| Cannot clear codes | Incorrect button sequence. | Follow "Step 1: Clear Existing Codes" precisely. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | Lazmin |
| Model Number | Lazminys87tcheai |
| Working Frequency | 433 MHz |
| Working Mode | Copy Type |
| Working Voltage | 12V |
| Operating Current | 12 mA |
| Battery Model | CR2016 Button Battery |
| Remote Control Distance | 50-100 m (in open environment) |
| Number of Buttons | 3 |
| Compatible Devices | Electric gates, garage doors, machinery, other intelligent control systems |
| Dimensions (L x W x H) | Approx. 61 x 29 x 12 mm (2.4 x 1.1 x 0.4 inches) |
| Weight | Approx. 29 g |
| Country of Origin | China |
| UPC / GTIN | 705989018519 |
| ASIN | B07YS23C1L |

This image provides precise measurements of the Lazmin Universal Remote Control, indicating its compact size with a length of 61mm (2.4 inches), a width of 29mm (1.1 inches), and a thickness of 12mm (0.4 inches). The remote weighs approximately 29 grams.
9. Warranty and Support
For warranty information or technical support, please refer to the seller or the official Lazmin website. Keep your purchase receipt as proof of purchase.