Recommended Milesight Models and Their Use Cases with KaaIoT

Milesight is a trusted name in industrial IoT, known for solid LoRaWAN sensors, edge gateways, and controllers built for continuous operation in the field. Their devices stand out for precision, reliability, and open-protocol design. Paired with the KaaIoT Platform, they form a complete system for telemetry, visualization, and automation. Kaa acts as the middleware that connects Milesight sensors, gateways, and actuators into one secure environment, allowing real-time dashboards, alerts, and control of field devices. Below is an overview of the recommended Milesight models and how they integrate with KaaIoT.

How to select devices from Milesight

Choosing the right device is key. Milesight offers many models tuned for different conditions: humidity, temperature range, gas type, distance, or power source. The right pick affects accuracy, uptime, and maintenance. The table below shows recommended Milesight devices, their use cases, main features, and how they integrate with KaaIoT.

Milesight devices and their applications

Understanding how integration works

Milesight devices rely primarily on LoRaWAN, a low-power wide-area network protocol ideal for distributed sensing. Data from these sensors is collected by UG-series gateways, which forward LoRaWAN packets via UDP to The Things Network (TTN), where they are converted to MQTT streams. These MQTT messages are then securely transmitted to the Kaa IoT Platform for processing and visualization.

A step-by-step example of this process is shown in the KaaIoT Platform & Milesight Gateway Integration via TTN video.

Inside Kaa, each device becomes a digital twin – a virtual entity that stores its real-time readings, metadata, and historical data. From there, operators can:

• visualize parameters on custom dashboards,
• set rule-based triggers (e.g., turn on ventilation if CO₂ > 800 ppm),
• and forward aggregated data to external systems such as ERP.

This architecture allows seamless integration of hundreds or thousands of Milesight endpoints without vendor lock-in.

Gas sensing for safety and environment

Gas sensors, such as the GS301 series, play a crucial role in industrial hygiene and safety. Each model is calibrated for a specific compound, such as ammonia in agriculture, hydrogen sulfide in wastewater treatment plants, or methane in boiler rooms. Their LoRaWAN communication minimizes cabling costs and ensures continuous coverage in remote areas. In Kaa, the data flow is straightforward: sensors send periodic concentration values and alarm flags. These are stored and visualized in real time. When a threshold is exceeded, Kaa can trigger a downlink command to a UC300 controller, activating ventilation or an alarm system. This closed loop turns static monitoring into actionable automation.

Monitoring air quality in smart buildings

AM-series indoor air-quality sensors are designed for human-centric environments, such as offices, classrooms, and meeting spaces, where CO₂ and PM2.5 levels directly impact productivity. Models like AM319 combine environmental sensing with local visualization on an e-ink display.

In combination with Kaa dashboards, facility managers can:

• monitor microclimate trends across rooms,
• correlate occupancy data with air quality,
• and automatically control HVAC units through Modbus or BACnet gateways.

By building these feedback loops, Kaa enables energy-efficient ventilation without compromising comfort.

Temperature and humidity telemetry

EM300-TH and EM320-TH sensors are among the most widely used Milesight devices in logistics, agriculture, and manufacturing. Their measurement accuracy (±0.3 °C) and long battery life make them perfect for cold-chain monitoring and greenhouse climate control. Within Kaa IoT, the temperature stream becomes part of a larger data context: combined with power consumption, occupancy, or equipment status. Alerts can be configured to trigger when readings drift beyond specified thresholds, and historical charts help identify early signs of HVAC malfunctions or poor insulation.

Leak detection and facility protection

Water leaks remain one of the most costly facility issues, especially in data centers and commercial buildings. The WS301-WL point sensor and EM300-LD cable sensor detect the presence of water instantly and send LoRaWAN events to the gateway.

Once the event reaches Kaa, it can:

• notify maintenance staff through mobile alerts,
• automatically disable pumps or close valves via UC300 relay output,
• and log the incident for trend analysis.

This chain of actions can prevent substantial property damage and downtime.

Tilt monitoring and structural stability

The EM310-TILT and EM320-TILT sensors utilize a 3-axis accelerometer to measure inclination up to ±90 °. These devices are widely used on towers, bridges, and storage tanks. Their rugged IP67 enclosure withstands outdoor conditions. When integrated with Kaa, tilt data can be visualized on live graphs or used in predictive algorithms. For example, if the tilt angle gradually increases over several weeks, the system can flag potential foundation issues before they become a problem.

Level measurement and distance control

The EM400 series, available in ultrasonic, radar, or multi-surface versions, provides non-contact liquid level monitoring and waste containers. With ranges up to 10 meters, these sensors deliver precise data without physical exposure to corrosive environments. Kaa’s analytics engine can convert these readings into actionable metrics, including remaining tank volume, fill rate, or consumption forecast. Operators can automate pump activation or create visual dashboards that display multiple tanks or reservoirs on a single screen.

Occupancy analytics and radar sensing

Modern smart-building deployments increasingly depend on accurate occupancy data. Milesight’s VS121-AI and VS370 Radar sensors detect human presence and count people using ToF or radar technology with onboard AI processing.

When paired with Kaa IoT, this data can drive multiple applications:

• automated lighting and HVAC optimization,
• utilization analytics for meeting rooms,
• and anomaly detection for security.

Instead of relying on motion sensors that often produce false positives, these radar-based models offer precise, privacy-safe detection even in complex environments.

Gas leak detection for industrial safety

In facilities handling flammable or toxic gases, continuous leak monitoring is mandatory. The GS301-H₂S and GS301-NH₃ variants provide industrial-grade calibration and fast response time. Integrating them into Kaa enables centralized incident management: any leak event appears immediately on the dashboard, triggers alarms, and can activate emergency shutdown sequences via connected UC controllers. This not only protects personnel but also ensures compliance with safety regulations.

Controllers and gateways: the backbone of automation

While sensors capture data, UC-series controllers and UG-series gateways handle communication and actuation. UC100 and UC300 provide multiple interfaces (RS485, analog inputs, digital I/O) and Modbus compatibility, making them perfect bridges between traditional equipment and the IoT layer. UG-series gateways (UG63, UG65, UG67) aggregate LoRaWAN traffic from up to thousands of endpoints and forward it securely to the Kaa cloud or on-premise deployment. They can also run edge logic for local filtering and buffering, reducing bandwidth usage.

In typical setups, the flow looks like this: 

Sensor → LoRaWAN Gateway → LoraWan Network Server → KaaIoT → IoT Dashboard.

This layered design ensures reliability and scalability, allowing gradual expansion from pilot projects to full enterprise deployments.

Building a unified IoT architecture with Milesight and Kaa

For air quality monitoring or gas safety control, Milesight devices + Kaa IoT platform = full stack solution. Kaa unifies all devices in one interface: no need for vendor dashboards or different APIs.

Integrators can:

• manage configs,
• view real-time metrics,
• create automation rules,
• build a unified central interface for your solution.

The combined use of Milesight sensors and Kaa IoT has already proven effective across multiple sectors:

• Energy companies use EM320-TH sensors to monitor transformer temperatures and detect overheating early.
• Commercial real estate operators track indoor air quality and occupancy using AM319 and VS121 sensors, achieving up to 25% energy savings.
• Municipal utilities rely on GS301-H₂S devices connected to Kaa for real-time alerts in wastewater facilities, improving worker safety and reducing unplanned maintenance.

This demonstrates the flexibility of the joint ecosystem that scales from small buildings to nationwide networks.

Final thoughts

We’ve integrated the full range of Milesight devices with the Kaa IoT platform from gas, climate, leak, and level sensors to controllers and gateways. All devices communicate via LoRaWAN to Kaa, which handles data storage, visualization, analytics, and automation. UC-series controllers close the loop, managing pumps, ventilation, lighting, and other actuators. The result: a ready end-to-end IoT stack without vendor dashboards or API chaos. If you want a solution that just works, reach out to us.