Configure in the Browser
This IoT hub runs its own web interface. You connect, add devices, and directly connect with your own MQTT broker.
LAUNCHING Q2 2026 - LIMITED EARLY ACCESSConfigure sensors and actuators
Configure sensors and actuators
like setting up a router
One hub. One interface.
Protonest Master is a physical IoT gateway device that connects on-site sensors and hardware to the Protonest cloud, handling local processing, device communication, and reliable operation even with unstable internet.
The thinking behind it.
Protonest Master was built to reduce friction in real IoT work. From education to field deployment, the focus is clarity, reliability, and control.
Designed to work out of the box.
Native MQTT support
Sensor data publishes to any MQTT broker using secure defaults. No custom firmware. No manual broker handling.
Control Physical Outputs
Drive up to 5 digital outputs from a single device. Suitable for pumps, motors, and other outputs.
Broad Sensor Support
Connect digital, analog, and RS485 sensors. Modbus devices work without additional adapters.
Flexible Connectivity
Configure Wi-Fi or cellular directly through the interface.
Live Device Testing
Read sensor values and monitor outputs in real time. Verify behaviour before installation.
Secure by Design
Encrypted communication using TLS. Isolated configurations with built-in health monitoring.
Get access before public release.
GET EARLY ACCESSMade for how you build.
View all
Technical details at a glance.
ESP32-S3 with dual-core performance at 240 MHz
6 Digital ports for stable, predictable control
Powered through USB-C at 5V
Wi-Fi 2.4 GHz and cellular support
Built in MQTT, OTA and HTTPS support
Modbus support over RS485
Web dashboard hosted on the device
DIN-rail mountable, water-resistant housing
When it becomes available.
Q1 2026
Prototype validation
Core hardware and software validated through internal testing and early deployments.
Q2 2026
Beta Release
A small batch released to early users for feedback and iteration.
Q3 2026
General Release
Available for the general public.