Industrial IoT and Automation Solutions

A powerful bridge between software and physical systems

NetRelay is a programmable industrial IoT and automation platform that connects software applications with sensors, relays and field equipment. Its Ethernet, Wi-Fi and PoE connectivity options make it suitable for different facilities and field environments.

Secure and independent local operation

NetRelay automation scenarios can operate entirely within the local network without mandatory cloud connectivity. This makes it possible to build systems that are less affected by internet outages, keep data under business control and reduce dependency on external services.

Rich input and output capabilities

NetRelay provides 4 digital inputs, 4 relay outputs rated up to 250V 10A and multiple expansion interfaces. Door sensors, motion detectors, alarm contacts and other field equipment can be monitored through digital inputs. Relay outputs can control lighting, fans, barriers, pumps, sirens, contactors and similar devices.

Analogue sensor and expansion support

External modules can be used to collect data from temperature, light, pressure, humidity and soil moisture sensors. An optional DS3231 RTC module enables time-based automation even without internet connectivity. MicroSD support allows sensor data and event logs to be stored locally.

MQTT, HTTP and WebSocket integration

NetRelay supports MQTT, HTTP GET/POST, WebSocket and TCP communication methods. This allows two-way communication with Home Assistant, Node-RED, SCADA, ERP, production monitoring platforms and custom management software.

Applications developed with Python, Node.js, C#, PHP, Delphi, C++ and similar technologies can access NetRelay inputs and outputs through its API.

Smart event and time management

Automation rules can be created through the web-based management interface according to sensor values, input states, time information or network availability. Lighting can be controlled using sunrise and sunset triggers, fans can start when temperature rises and email notifications can be sent when sensor states change.

Automatic intervention with Ping Watchdog

Ping Watchdog can monitor modems, servers, cameras and other IP devices on the network. When a defined device becomes unreachable, the relevant relay can automatically power-cycle the equipment. This allows common connectivity problems to be resolved without sending technical staff to the site.

Application areas

• Factory and facility automation
• Production and energy monitoring
• Server room temperature and connectivity monitoring
• Smart agriculture and automatic irrigation
• Licence plate recognition and parking barrier control
• Building and outdoor lighting automation
• Remote device management
• Telemetry and sensor data collection

Custom project development support

M&L Technology presents NetRelay not only as a relay controller but as an extensible platform that can be integrated into custom software and automation projects. Custom API integrations, management dashboards, reporting interfaces and field automation scenarios can be developed according to project requirements.

Why NetRelay?

• Local operation without mandatory cloud dependency
• Ethernet, Wi-Fi and 802.3af/at PoE support
• 4 digital inputs and 4 relay outputs rated up to 250V 10A
• MQTT, HTTP, WebSocket and TCP support
• RTC, analogue sensor and MicroSD expansion options
• Mobile-friendly Turkish and English web interface
• DIN rail enclosure suitable for control panels
• Easy integration with custom software projects