Every system
in your hands.
8 relay outputs. 8 digital inputs. Node-based automations, PoE+ power, and built-in remote management. Built for professional AV installations.
From simple triggers to complex automations, the RELO IO8 speaks the languages your system already uses. No translators, no adapters.
6 supported protocols
Reliable bi-directional control over your network. Send commands and receive state feedback from any device on LAN or WAN.
Low-latency fire-and-forget messaging. Ideal for real-time triggers where speed matters more than delivery confirmation.
RESTful API for web services, control systems, and custom apps. Full GET / POST / PUT support with variable injection.
Open Sound Control for connecting lighting desks, DAWs, and control surfaces directly over the network.
Industry-standard DMX-over-Ethernet. Trigger relay outputs directly from lighting consoles and media servers.
8 opto-isolated digital inputs. Connect buttons, sensors, or dry contacts to trigger any automation in real time.
The RELO IO8 runs on USB-C 5V as its primary power source. A USB-C PSU with EU, UK, and USA connectors is included in the box. Add a PoE+ switch and both inputs run simultaneously, giving you full power redundancy with no extra wiring.
Build automation flows for the RELO IO8 using the Cueva Control desktop app, available on Mac and Windows. Connect triggers, conditions, and actions visually, without writing a single line of code.
Every node has a role. Triggers start the flow, conditions shape it, and actions make it happen. All on one canvas.
The RELO IO8 is a 1/3-rack unit. Three fit side by side in a single 1U 19″ rack space using the RM99 bracket. Cable management included.
The WM33 bracket mounts any Cueva Control device to a wall, ceiling, or floor. Horizontally or vertically. Low-profile anodised aluminium, concealed cable management and all fixings included.
Every RELO IO8 ships with a full 12-month Cueva Horizon subscription. Monitor device status, update firmware, push new flows, and troubleshoot. All from the Horizon cloud dashboard without being on-site.
From meeting rooms to live venues, the RELO IO8 handles the real-world scenarios AV integrators face every day.
Corporate
One button press drops the screen, powers the projector, dims the lights, and closes the blinds. No remote juggling, no user error.
Events
GPIO inputs from the show control desk fire relay cues, send ArtNet to the lighting console, and trigger HTTP calls to the sound system. All in a single flow.
Museums
Visitors walk up and the exhibit comes to life. Proximity sensors fire video and audio playback, light scenes shift, and staff can reset any exhibit remotely via Horizon.
Getting Started
Step-by-step guide from unboxing to your first deployed flow. Covers PoE power, network discovery, and Cueva Desktop setup.
Learn moreDownloads
Latest firmware, Cueva Desktop installer, technical datasheets, and wiring diagrams. All in one place.
Learn moreTraining
The Cueva Control Level 1 certification covers the RELO IO8 in depth: hardware, wiring, flow building, and Horizon setup.
Learn moreTutorial
A complete walkthrough from a GPIO button press to relay output and HTTP notification, using the visual node editor.
Learn moreTutorial
Connect the RELO IO8 to any ArtNet-capable lighting console. Covers universe config, trigger mapping, and troubleshooting.
Learn moreSupport
Browse the FAQ, open a support ticket, or talk to an integrator who has used the RELO IO8 in the field.
Learn moreShips worldwide within 5–7 business days.
Volume pricing available for integrators.
VAT not included · Free worldwide shipping on orders over €500