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External Display for Solar Charge Controller, LCD Screen Remote Monitor for MPPT
Product description
This LCD display product has been used as the remote diplay unit for our HeliosNE charge controllers. You can check the working status and parameters in the screen, and set the system working parameters by the key press operation.
- Exclusive design for PV charge system monitoring
- Applicable for mppt models controller
- Easy fixture for remote monitoring
- 4 keys for multiple operation settings
- 2 ways of installation
- Inbuilt BT module for APP operation(Optional)
Product Parameters

Schematic Diagram

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Relevant Information
External Display for Solar Charge Controller
The External Display for Solar Charge Controller is a practical, high-visibility accessory designed to provide real-time system data monitoring for MPPT and PWM solar charge controllers. Compatible with most mainstream solar controller models, this external LCD display for solar charge controller offers clear, easy-to-read information, eliminating the need to access the controller itself for system status checks—ideal for installations where the solar charge controller is mounted in hard-to-reach areas.
Featuring a 2.4-inch high-contrast LCD screen with backlight function, the display ensures excellent readability even in bright sunlight or low-light environments. It clearly shows key solar system parameters, including solar panel voltage and current, battery voltage, charge current, battery capacity, charging mode, and load status, allowing users to monitor system performance at a glance.
With a 3-meter extension cable, the external display for solar charge controller supports flexible installation—mount it on a wall, dashboard, or any convenient location near the user. It connects via the solar charge controller’s standard communication port (RJ12/RJ45) with plug-and-play installation, no complex wiring or professional technical skills required. The external LCD display is powered directly by the solar controller, requiring no additional power supply.
Built with durable ABS material and IP54 protection grade, this external display for solar charge controller is resistant to dust and water splashes, suitable for outdoor and harsh working environments (-20℃ to 70℃). It supports automatic brightness adjustment and low-power mode, reducing energy consumption while ensuring long-term stable operation. Perfect for off-grid solar systems, RVs, cabins, marine applications, and home solar setups, this external LCD display enhances solar system usability and simplifies solar charge controller maintenance.
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