SRNE Eco System Starter Kit – Build the Brain of Your Campervan Power System

The SRNE Eco System Starter Kit is the ideal starting point for anyone who wants a truly smart, connected power system in a campervan, motorhome, off-grid cabin or boat. This kit brings together three core components:

• RMA7 Touch Screen Display
• CU2 Data Management & Control Unit
• BS48500 Smart Battery Shunt

Together they form the “brain” of your electrical system, giving you full visibility and control over charging, loads, sensors and battery performance from a single interface.

The SRNE Eco System Starter Kit – RMA7 display, CU2 controller and BS48500 smart shunt.

What Is the SRNE Eco System Starter Kit?

This kit is designed as the foundation for an SRNE-based power system. Instead of starting with chargers or inverters, you begin with the monitoring and control layer that everything else plugs into.

Once installed, the kit allows you to:

• Monitor battery status, current draw and energy usage in real time.
• Switch 12V loads such as lights, fans and pumps via relay outputs.
• Connect tank level and temperature sensors for a complete system overview.
• Expand with SRNE MPPT controllers, DC-DC chargers and inverters for a full 360° power solution.

RMA7 Touch Screen Display – Your System at a Glance

The RMA7 is a 7" high-resolution touch display designed for wall mounting in your campervan or motorhome. It shows key data at a glance: solar input, AC and DC loads, battery state of charge, tank levels and more.

The RMA7 touch screen display gives you a clear, intuitive overview of your entire power system.

From the RMA7 you can:

• View real-time charge and load information.
• Check battery state of charge and voltage.
• See which devices are active and how much power they’re using.
• Control outputs linked to the CU2’s relays – ideal for lighting zones, pumps or fridge isolation.

CU2 Data Management System – The Control Centre

The CU2 sits at the heart of the SRNE Eco System. It acts as the communications hub, bringing together data from shunts, sensors, chargers and inverters and passing it to the RMA7 and mobile app.

The CU2 controller links all SRNE devices and provides Wi-Fi/Bluetooth connectivity for the app.

Key CU2 features include:

• Built-in Wi-Fi and Bluetooth for local and remote monitoring via the SRNE app.
• Six 6A relay outputs to switch 12V loads such as lighting, fans or auxiliary circuits.
• Support for tank level probes and temperature sensors.
• RS485 / CAN communication ports for connection to SRNE chargers, inverters and other devices.

BS48500 Smart Battery Shunt – Accurate Power Monitoring

The BS48500 smart shunt turns your leisure battery into a fully monitored energy source. Fitted in the negative line, it measures current and voltage to calculate state of charge, remaining capacity, amp-hours used and more.

The BS48500 smart shunt provides precise battery data for the CU2 and RMA7.

Once connected to the CU2, all of this information is visible on the RMA7 display and in the SRNE app, giving you confidence in your power reserves when travelling off-grid.

App & Remote Monitoring – Control from Anywhere

As well as the physical touch screen, the Eco System Starter Kit supports full monitoring and control via the SRNE mobile app. With Wi-Fi networking you can check on your van, boat or off-grid system even when you’re away from it.

Monitor battery status, solar performance and connected devices directly from your smartphone.

Using the app you can:

• See live system data (solar, AC, DC loads, battery state).
• Review historical charts and energy usage.
• Control relays and connected loads remotely.
• Check tank levels and temperatures (with optional sensors).

Part of a 360° SRNE RV Power Ecosystem

The Starter Kit is just the beginning. The SRNE Eco System is designed to integrate with MPPT controllers, dual-input DC-DC chargers and pure sine wave inverters to create a complete power solution.

Expand the Eco System with SRNE MPPT controllers, DC-DC chargers and inverters for a full 360° setup.

Typical expansion options include:

• SRNE SAA 3-in-1 charger – MPPT + DC-DC + AC charger in one unit.
• SRNE MD1250 dual DC-DC & MPPT controller.
• SRNE pure sine wave inverters with remote control capability.
• Water tank probes and internal/external temperature sensors.

With these add-ons, the CU2 and RMA7 provide a genuine “command centre” for your entire 12V system.

Who Is the SRNE Eco System Starter Kit For?

This kit is ideal if you:

• Are planning a new campervan, motorhome or overland build and want a smart, integrated electrical system.
• Already have chargers and inverters but lack a central monitoring and control interface.
• Want to keep an eye on battery health, loads and tank levels in real time.
• Value a tidy installation with fewer separate displays and modules.

Frequently Asked Questions

Can I start with this kit and add other SRNE devices later?

Absolutely. This kit is designed as the starting point. You can add compatible MPPT controllers, DC-DC chargers, inverters, tank sensors and temperature probes as your system grows.

Is it compatible with lithium leisure batteries?

Yes. The system works extremely well with SkyEnergi LiFePO₄ batteries, giving you accurate state-of-charge readings and detailed usage data through the shunt and CU2.

Can I still use it with AGM or lead-acid batteries?

Yes. The Eco System Starter Kit will monitor and manage systems based around AGM or lead-acid batteries as well as lithium.

Build Your Smart Power System with SkyEnergi

The SRNE Eco System Starter Kit is the first step towards a modern, fully monitored campervan or off-grid power setup. Start with the RMA7, CU2 and BS48500, then expand with chargers, inverters and sensors as your needs grow.

• View the SRNE Eco System Starter Kit
• Explore the full SRNE RV Collection
• Pair with SkyEnergi Lithium Leisure Batteries

All backed by fast UK delivery, expert technical support and long warranties from SkyEnergi.