Engineered in the Netherlands

The new standard of control systems.

Build the logic. Deploy it. Let the system run itself.

Buy the RELO IO8

Control that runs where it matters.
No PC. No browser. No cloud dependency.

Close view of the RELO IO8 rear panel with all eight screw terminals wired and a PoE cable connected

Built for the real world. Cueva Control brings hardware, software and local processing together in one ecosystem. Built for reliable installations, easy deployment and control that keeps running on its own.

Introduction

Meet the RELO.

Angled detail of the RELO IO8 connector panel showing the terminal blocks and network port

Power and network. One cable. PoE+ carries both power and data. No PoE available? USB-C provides an alternative 5V power input.

Nine RELO IO8 units stacked three by three, one turned to show the rear panel

Rack it. Mount it. Put it where you need it. Fit three Cueva devices side by side in a single 1U 19″ rack with the RM99, or mount one to a wall, ceiling or almost anywhere with the WM33.

Cueva Desktop

Build visually. The hardware runs it.

Connect triggers, conditions and actions on a visual canvas. The logic lives on the device and runs there, with no computer in the loop and nothing that has to stay open.

Cueva Desktop
The Cueva Desktop automations canvas holding three named flows, SHOWCONTROL, ART-NET and E-STOP, wired from GPIO inputs through Loop, Limit and GPIO State nodes into relay, Art-Net and preset actions, with the node palette open down the left

Interface builder · coming soon

Your own touch panel.

Design the control screen in Cueva Desktop, upload it to the RELO IO8 and run it on any iPad, iPhone or Android device, with live feedback from the room.

See the interface builder Join the waitlist
Cueva Desktop forMacCueva Desktop forWindowsComing soon onApp StoreComing soon onGoogle Play

Cueva Horizon

Every venue. One view.

Live status across your locations. Remote access without a VPN. Manage devices and deploy firmware from anywhere.

Cueva Horizon
The Cueva Horizon device list with status, firmware and licence per controller

Products

Built to work. Made to fit.

All products
The Cueva Control RELO IO8 controller, three-quarter view showing the front face and the vented side

The controller

RELO IO8

Eight relays and eight inputs behind a runtime that executes on the device, in an anodised aluminium case a third of a rack unit wide.

8
Relay outputs
8
Digital inputs
24V
400mA rated
PoE+
or USB-C 5V
Buy the RELO IO8Specifications

Mounting

The Cueva Control RM99 rack mount holding three RELO IO8 controllers in 1U

RM99

Three controllers across a single rack unit, front or rear facing.
The Cueva Control WM33 wall mount with a RELO IO8 controller fitted

WM33

Low-profile wall plate for a single unit, cable exit either side.
The Cueva Control RB1 rack blank, a plain 1U nineteen inch panel

RB1

Nineteen inch blank, 1U, to close a gap in the rack.

From the workshop

Notes, releases and guides.

All articles
RTP-MIDI trigger and action nodes for RELO IO826 June 2026 · 4 minRELO IO8 is now available in Bitfocus Companion25 June 2026 · 3 minTCP command to relay: control physical outputs over the network20 May 2026 · 5 minGPIO button to TCP: send IP commands from a physical button20 May 2026 · 5 min

Start with one. Scale when you need to.

Order directly from our store, or talk to us about larger installations, integrations and project requirements.

Go to the storeEmail sales
Send us a message