Connecting a legacy serial device to a modern network usually comes down to one question: does the data need to travel over a wired network, WiFi, or cellular? Picking the wrong connectivity type is the most common mistake in industrial IoT retrofits. HAT INDUSTRIES helps businesses across Pakistan match the right USR IoT device to the job and source it through established, authorized channels. We’re not an authorized USR IoT distributor or stockist.
Serial-to-Ethernet / WiFi Device Servers
| Model | Best For |
|---|---|
| USR-TCP232-304 | Industrial RS232/RS485 to Ethernet, general PLC communication |
| USR-TCP232-410S | Compact serial server, stable point-to-point conversion |
| USR-W610 | Serial to WiFi, where Ethernet cabling isn’t practical |
| USR-WIFI232-630 | Advanced WiFi serial server with multiple operating modes |
Common uses: PLC communication, industrial data acquisition, general equipment monitoring.
Industrial IoT Gateways
| Model | Best For |
|---|---|
| USR-M300 | Multi-protocol gateway, mixed device environments |
| USR-M100 / M120 | Compact gateway for smaller automation setups |
| USR-N540 | Higher-performance gateway with multiple interfaces |
Supports Modbus RTU/TCP, MQTT, and HTTP for cloud integration.
Industrial Routers & Networking
| Model | Best For |
|---|---|
| USR-G806 | 4G connectivity for remote sites |
| USR-G780 | LTE router for general industrial use |
| USR-DR504 | VPN router for secure remote communication |
Wireless & Embedded Modules
WiFi modules, GSM/4G modules, and embedded serial modules for OEMs building connectivity into their own equipment.
Frequently Asked Questions
How do I choose between a serial-to-Ethernet converter and a WiFi converter?
If Ethernet cabling already reaches the device location, a wired converter (like the USR-TCP232 series) is simpler and more reliable. If cabling isn’t practical, a WiFi converter (USR-W610 or WIFI232-630) avoids the cabling run at the cost of some wireless reliability considerations.
What’s the difference between a device server and an IoT gateway?
A device server (like USR-TCP232 series) does one job: converts serial data to a network protocol. A gateway (like USR-M300) adds protocol translation and cloud/MQTT connectivity on top, useful when you need to get data into a cloud platform rather than just onto a local network.
Do these devices work with existing PLC and SCADA systems?
Yes — most USR IoT devices support Modbus RTU/TCP, which covers the majority of industrial PLC and SCADA integrations.
Common Applications
General industrial automation, building management systems, and OEM/system integrator projects across Pakistan.
Get a Quote
Share your application details or an existing part number, and HAT INDUSTRIES will confirm the right match, availability, and pricing.



