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S335 IoT Gateway

Powerful IoT gateway to connect your sensors for seamless compressed air monitoring and data management.

ü Connects to factory systems via Modbus/RTU and Modbus/TCP

ü Supports up to 16 Modbus/RTU sensors

ü Remote monitoring via 4G modem and cloud services

ü Integrated web server for live data and configuration

ü Loop through power supply for sensors

ü Easy mounting on wall or DIN rail

ü Simplified configuration with import/export functionality

ü Universal sensor compatibility with third-party support

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The S335 IoT Gateway is the central hub for your compressed air monitoring system. Designed to bridge the gap between field sensors and advanced monitoring software, it ensures seamless data collection and distribution. The S335 supports multiple sensors, allowing up to 16 Modbus/RTU connections, making it ideal for monitoring small and large systems alike.


With an integrated web server and remote access via 4G, users can monitor and adjust their system settings from anywhere. The gateway’s powerful sensor supply enables direct power for connected devices, simplifying installation. The S335 is an all-in-one solution for optimizing compressed air systems.

Ideal for compressed air system monitoring in industrial facilities, manufacturing plants, and production sites. The S335 provides flexibility for both small-scale installations and large-scale setups requiring extensive data management.


The S335 IoT Gateway from SUTO iTEC easily connects with the S4M Smart Monitoring Software, giving you real-time access to your system’s data. With the optional 4G dongle, you can securely share this data over the internet, making it easy to monitor your system from anywhere.

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Data Logger

Electrical data

Input signals

Output signals

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