4 Digital Input 4 Digital Output WiFi Node

4 Digital Input 4 Digital Output WiFi Node

Wireless MQTT Digital I/O Device

Compact and reliable Wi-Fi–enabled digital I/O node designed for real-time monitoring and remote control in modern IoT and IIoT environments.
Equipped with 4 opto-isolated digital inputs and 4 relay outputs for simultaneous monitoring and equipment control applications.
Supports MQTT and Modbus TCP communication over WiFi for seamless integration with cloud platforms, SCADA systems, and IoT dashboards.
Engineered for industrial environments requiring secure connectivity, robust isolation, and dependable automation performance.

Description

The 4 Digital Input 4 Digital Output WiFi Node is a wireless industrial automation device built for distributed monitoring and control applications. Designed with WiFi connectivity and MQTT communication, it enables secure and lightweight data exchange with cloud platforms and remote monitoring systems.

With 4 isolated digital inputs and 4 relay outputs, the device allows real-time status monitoring and remote switching of equipment. Its compact DIN rail mounting design and plug-and-play installation make it suitable for industrial automation, building management, smart parking systems, logistics automation, and utility management environments.

The wireless architecture eliminates the need for complex cabling, making deployment faster and more flexible in both new and retrofit installations.

General

Input Power	Unregulated 9 – 30 VDC
Power Consumption	Less than 1 W @ 12 VDC
Protections	Reverse polarity Overvoltage (+/- 35 VDC) Short circuit Transient voltage TVS / ESD protection
Indication	Power (Red), Status (Green)
Connector	5 mm pitch screw terminal blocks
Enclosure	PC enclosure
Installation Type	Plug and Play
Dimensions	Modular architecture (145 mm x 90 mm x 40 mm)
Warranty	12 months from installation or 18 months from delivery*

Data Connectivity

WLAN	IEEE 802.11 b/g/n (2.4 GHz)
Data Format	JSON
Supported Protocols	DHCP, HTTP, MQTT
Watchdog Timer	System (1.6 sec) and communication programmable
Communication Indication	Green LED

Digital Input

Channels	4
Contact Rating	24 VDC sink/source (isolated)
Isolation	Up to 5000 VRMS for 1 minute
Standard	Opto-isolated inputs

Digital Output

Channels	4
Contact Rating	5 Amp @ 240 VAC 5 Amp @ 30 VDC
Type	Form A relay output

Environment

Operating Temperature	0 to 65° C
Storage Temperature	-10 to 70° C
Operating Humidity	5 – 95% RH (non-condensing)

Mounting

Built Architecture	Modular
Mounting Options	DIN Rail Mountable, Wall Mountable, Stack Mount
Installation	Plug and Play Device

Key Features

WiFi Connectivity

Wireless monitoring and control without complex wiring infrastructure.

MQTT Communication Support

Lightweight protocol for cloud integration and real-time IoT communication.

Modbus TCP over WiFi

Industrial protocol compatibility for SCADA and automation systems.

4 Digital Inputs & 4 Relay Outputs

Supports remote monitoring and equipment control simultaneously.

Industrial Isolation

Opto-isolated inputs protect against electrical noise and voltage spikes.

Compact DIN Rail Design

Designed for easy installation inside industrial control panels.

Functional Description

Digital Input Monitoring: The device reads signals from switches, sensors, and dry contact devices through isolated digital input channels.

Remote Output Control: Relay outputs allow remote switching of loads and automation equipment via MQTT or Modbus TCP commands.

Wireless Communication: WiFi connectivity enables seamless integration with cloud platforms, dashboards, and SCADA systems using JSON data format.

Status Indication: LED indicators provide real-time feedback on power and communication status for easy monitoring.