We Build Reliable Controllers.

Industrial IoT, Engineered in Estonia

Linux-based gateways and Modbus RTU controllers for energy, building automation, and industrial IoT. Designed and manufactured in the EU.

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We Build Reliable Controllers. — Industrial IoT, Engineered in Estonia

5,000+ controllers deployed across Europe. Trusted by Fusebox · Soleron · Agatark · Eesti Energia · +many more

Pick Your Path

Wolf Gateway

Linux 4G/LTE Modular

Modular Linux-based controller with Ethernet, 4G/LTE, and expansion cards. Choose Wolf-App for ready automation or Wolf-OS for your own software.

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RTU Controllers

Standalone Modbus RTU Rule engine

Standalone Modbus RTU controllers with relays and analog/digital I/O. DIN-rail mount, built-in rule engine, local automation.

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Software for the Wolf Gateway

Wolf-App

Ready Automation MQTT · Modbus · REST Whitelabel

Receives commands from your cloud, controls equipment, sends metrics. Configure once, deploy to many units.

Learn about Wolf-App

Wolf-OS

Linux Platform Open Source Build System

Clean Linux platform. Run your own software on proven industrial hardware. Build system, safe updates, expansion-card auto-detection.

Learn about Wolf-OS

Why FoxIoT

Reliable Hardware

Industrial-grade design, −40 to +55 °C operating range. Tested in real projects, built to run 24/7.

Simple Integration

Modbus RTU/TCP, MQTT, REST API. Fits into most automation systems with standard protocols.

EU Designed & Manufactured

Designed in Estonia, assembled by certified partners. Full control over quality and supply chain.

Real Project Support

We help you complete your integrations. Direct contact with the engineering team.

How It Works

Decide What to Control

PV inverters, BESS, HVAC, boilers, pumps, lighting, sensors — FoxIoT works with all common field equipment.

Choose Your Device

Wolf Gateway with Wolf-App for ready automation, Wolf-OS for custom software, or RTU Controllers for standalone I/O.

Install and Connect

DIN-rail mount, power up, connect via Modbus RTU/TCP, MQTT, REST, Ethernet, or 4G/LTE.

It Just Works

Your system runs reliably with remote access, firmware updates, and support when needed.

Real-World Applications

Smart Lighting (DALI)

Live deployment

DALI-2 lighting control on Wolf Gateway: configure buses, group fixtures, manage emergency lighting tests. Scriptable via Lua rules for custom logic. Integrate over REST API, MQTT, or Modbus TCP.

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Tell Us About Your Project

Hardware requirements, custom builds, integration support, or volume pricing — we're happy to talk it through.

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