TMT Clifford 400
TMT Clifford 400 Single Automatic Gate Opener User Manual
Model: Clifford 400 | Brand: TMT
1. Introduction
The TMT Clifford 400 Single Automatic Gate Opener is designed for heavy-duty swing gates, supporting gates up to 20 feet in length and 950 pounds in weight. Constructed with a durable aluminum alloy shell, it ensures reliable operation in various weather conditions, from -4°F to 122°F. This system offers flexible power options including AC electricity, battery, and solar compatibility, with two 10-watt solar panels included for energy efficiency. Control your gate effortlessly using the included remote control or the convenient Chow! App via Wi-Fi and Bluetooth.

2. Safety Information
Read all instructions carefully before installation and operation. Failure to follow these instructions may result in serious injury or property damage. Keep the area around the gate clear of obstructions and people, especially children and pets, during operation. Do not allow children to operate the gate opener or play near the gate. Ensure all safety devices, such as photo-eye sensors (if installed), are functioning correctly. Disconnect power before performing any maintenance or service.
3. Package Contents
Verify that all components listed below are present in your package:
- Clifford 400 Swing Gate Opener
- Solar Panel Kit (two 10-watt solar panels)
- CB236 Control Box
- 433MHz Remote Control
- Mounting Hardware
- 24V DC Power Supply
- Battery Connecting Wire
- Solar Panel Wire
- Power Supply Box (Note: Two 12V batteries are not included)
- Installation Manual (this document)

4. Setup and Installation
The TMT Clifford 400 is designed for straightforward installation using basic household tools. No welding or high-voltage wiring is required. This gate opener supports both Pull-to-Open and Push-to-Open configurations.
4.1 Power Supply Options
The system offers flexible power options:
- AC Electricity: Connect the 24V DC power supply to a standard AC outlet.
- Battery Power: The system can operate using two 12V batteries (not included) installed in the power supply box.
- Solar Power: Utilize the included two 10-watt solar panels to charge the batteries, reducing energy costs.

4.2 Mounting the Actuator
Carefully plan the mounting location for the actuator arm to ensure proper gate movement. Refer to the diagrams below for outward and inward opening configurations to determine optimal mounting points (A and B) and dimensions.

For tubular or chain-link gates, specialized clamps are provided to secure the actuator arm.

4.3 Installation Examples
The TMT Clifford 400 can be installed on various gate types. Below are examples of typical installations:




For a visual guide, please refer to the official installation video:
Video 4.1: TMT Clifford 400 & 500 Automatic Gate Openers (APP Compatible) - This video provides an overview of the gate opener's features and installation process.
5. Operating Instructions
5.1 Remote Control Operation
The included 433MHz remote control allows you to open and close your gate from up to 328 feet away. The remote features professional rolling code technology for enhanced security, preventing unauthorized copying.

5.2 Chow! App Operation
Control your gate opener using the Chow! App on your smartphone via Wi-Fi and Bluetooth. The app allows you to open, close, and manage your gate from anywhere.

Download the Chow! App from your device's app store or by scanning the QR code provided in the product packaging or on the product page. The app allows for easy sharing of access with up to 10 users, providing convenience for family and friends.
Download the Chow! App: http://onelink.to/tmk5na
5.3 Manual Release
In case of power outage or emergency, the gate opener can be fully released, allowing you to move the actuator arm with minimal force to manually open or close the gate.
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your TMT Clifford 400 gate opener.
- Cleanliness: Keep the actuator arm and control box free from dirt, debris, and ice.
- Lubrication: Periodically check and lubricate moving parts as recommended in the detailed manual (if applicable).
- Battery Check: If using battery power, regularly check battery terminals for corrosion and ensure batteries are holding a charge.
- Hardware Inspection: Periodically inspect all mounting hardware for tightness and signs of wear. Tighten any loose bolts.
- Gate Condition: Ensure your gate itself is in good working order, with hinges and wheels (if applicable) moving freely.
7. Troubleshooting
If you encounter issues with your TMT Clifford 400 gate opener, consider the following common troubleshooting steps:
- Gate Not Responding: Check power connections, remote control battery, and ensure the manual release is not engaged.
- Intermittent Operation: Verify stable power supply, check for obstructions in the gate's path, and ensure proper alignment of photo-eye sensors.
- Unusual Noises: Inspect for loose components or obstructions. Lubricate moving parts if necessary.
- App Connectivity Issues: Ensure your smartphone's Wi-Fi and Bluetooth are enabled and within range. Restart the app or your phone.
For more detailed troubleshooting or persistent issues, please refer to the comprehensive user manual or contact TMT customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | TMT Automation Inc |
| Model | Clifford 400 |
| Max Gate Weight | 950 lb |
| Max Gate Length | 20 ft |
| Material | Aluminum Alloy Shell |
| Operating Temperature | -4°F to 122°F |
| Power Supply | AC Electricity, Battery (2x12V, not included), Solar Compatible |
| Solar Panels Included | Two 10-watt panels |
| Remote Control Range | Up to 328 ft |
| App Compatibility | Chow! App (Wi-Fi & Bluetooth) |
| Item Weight | 19.62 pounds |
| Product Dimensions | 36.53 x 5.35 x 4.96 inches |
9. Warranty and Support
TMT Automation Inc. provides a warranty for its products. The motor is covered for 24 months, and other components are covered for 12 months. For warranty claims or technical support, please contact TMT Automation Inc. customer service.
For North America ONLY, you can reach support at: 1-310-367-6086
For help in other regions, please refer to our main site at https://www.tmt-automation.com or email sales@tmt-automation.com.

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