Professional Indoor Air Quality Monitoring for Smart Buildings
The Milesight AM305L is a compact LoRaWAN® Indoor Air Quality (IAQ) Sensor designed to provide real-time monitoring of critical indoor environmental parameters. Combining temperature, humidity, ambient light, motion (PIR) and CO₂ concentration monitoring in a single device, the AM305L helps organizations create healthier, safer and more energy-efficient indoor environments.
The sensor continuously measures indoor environmental conditions and transmits data through LoRaWAN® networks to cloud platforms, dashboards and Building Management Systems (BMS). This enables facility managers to optimize HVAC operation, improve occupant comfort and reduce energy consumption through data-driven decisions.
The AM305L integrates a high-accuracy NDIR CO₂ sensor, making it ideal for offices, schools, hospitals, meeting rooms, hotels, retail stores and other indoor spaces where air quality monitoring is essential. Motion detection via the PIR sensor enables occupancy awareness and intelligent building automation.
The device supports NFC configuration, local data storage, alarm notifications, traffic-light status indication, buzzer alerts and Milesight D2D communication for ultra-low-latency interaction with other Milesight devices. It can operate using replaceable batteries or external USB Type-C power.
With its long battery life, compact design and reliable LoRaWAN® connectivity, the AM305L is an ideal solution for professional indoor environmental monitoring projects.
Key Features
✔ Temperature Monitoring
✔ Relative Humidity Monitoring
✔ CO₂ Monitoring (NDIR Technology)
✔ Ambient Light Monitoring
✔ PIR Motion Detection
✔ LoRaWAN® Class A Connectivity
✔ Traffic Light Air Quality Indicator
✔ Built-in Buzzer Alarm
✔ NFC Configuration
✔ Milesight D2D Communication
✔ Local Data Storage & Retransmission
✔ Up to 6 Years Battery Life
Typical Specifications
• Temperature Sensor
• Humidity Sensor
• CO₂ Sensor (NDIR)
• Ambient Light Sensor
• PIR Motion Sensor
• LoRaWAN® Class A
• NFC Configuration
• Traffic Light Indicator
• Built-in Buzzer
• Data Storage Function
• Battery or USB Type-C Power Supply
• Up to 6 Years Battery Life
Applications
Offices
Meeting Rooms
Schools & Universities
Hospitals & Clinics
Hotels
Retail Stores
Smart Buildings
Indoor Air Quality Monitoring
HVAC Optimization
Building Automation Systems
Package Includes
✔ 1 × Milesight AM305L Sensor
✔ Wall Mounting Kit
✔ Quick Start Guide
✔ Warranty Card
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Product Downloads
- Model: AM305L
- Measurements: Temperature, Humidity, CO₂, Light, PIR Motion
- CO₂ Sensor: NDIR Technology
- Wireless Technology: LoRaWAN®
- LoRaWAN Class: Class A
- Configuration: NFC / USB Type-C
- Alarm: Buzzer + Traffic Light Indicator
- D2D Communication: Supported
- Battery Life: Up to 6 Years
- Application: Indoor Air Quality Monitoring













