Compact wireless IoT gateway — RS485 Modbus RTU, 4G LTE, GPS sync, and 5-year onboard storage in a DIN-rail package.

Everything you need to bridge the industrial edge.
Six built-in capabilities — no extra hardware, no middleware, no compromises.
Technical Specifications
FLINT WDG85 · Product Code: 20003 · Datasheet v1.0
Network
Quad-Band GSM, LTE
Network Type
2G, 3G & 4G
FDD LTE
B1 / B3
TDD LTE
B38 / B39 / B40 / B41
GSM
900 / 1800 MHz
Time Sync
GPS, Server
Max Output Power
30 dBm
Rx Sensitivity
-110 dBm
Interface
RS485 MODBUS RTU | RS232 MODBUS RTU | USB Mass Storage
Built for the field. Ready for any industry.
From factory automation to remote water systems — FLINT WDG85 connects it all over 4G LTE.
Connect your factory floor to the cloud.
Bridge RS485 PLCs, SCADA, and control systems to live dashboards — without replacing existing infrastructure or running new cabling.
Turn legacy equipment into smart assets.
4G LTE eliminates the need for factory Wi-Fi or Ethernet runs. Any machine with an RS485 port becomes instantly cloud-connected.
Monitor water systems, anywhere, always.
Transmit probe readings from remote installations via cellular. Store years of quality data locally for compliance reporting.
Zero tolerance for temperature excursions.
Continuous temperature and humidity logging with SMS alerts. SD card backup ensures no data loss during connectivity outages.
Built-in connectivity, right out of the box.
RS485
Industry-standard serial bus for PLCs, sensors, energy meters, and industrial devices.
RS232
Legacy serial interface for direct connection to older industrial equipment and terminals.
4G LTE
FDD LTE B1/B3 · TDD B38/B39/B40/B41 — full cellular bands for global deployment.
GPS
GPS and server-based sync ensures accurate timestamps for every single data record.
Analog In
2 single-ended channels · 12-bit ADC · 1 Hz · ±0.1% full-scale accuracy.
USB
USB port for local data retrieval and firmware updates without network access.
Access your data, anywhere.
Web Portal
Remote access · any browser
Live data monitoring and historical download from anywhere via Aeron's secure web portal.
Desktop Application
Windows · full config control
Configure collection intervals, set thresholds, and retrieve logged data with graphical visualisation.
Android Application
Field data viewing on mobile
On-site data viewing for field engineers. Available exclusively for Aeron Web Services customers.
* Android app available exclusively for Aeron Web Services customers.
FLT-WDG85
Contact our IoT specialists for pricing, bulk orders, custom configurations, or a demo unit. Same-week dispatch available.