Milesight Indoor Ambience Monitoring Sensor AM304L / AM305L

AM304L and AM305L are compact indoor ambience monitoring sensors designed to measure key environmental parameters and help improve indoor comfort and air quality. Using LoRaWAN® technology, these sensors transmit data reliably over long distances while consuming ultra-low power.

Both models monitor temperature, humidity, light, and motion, making them ideal for occupancy awareness and environmental tracking. The AM305L additionally supports CO₂ monitoring, enabling more advanced air quality analysis for modern smart buildings.

Sensor data can be viewed and managed remotely when integrated with Milesight LoRaWAN gateways and the Milesight Development Platform, providing real-time insights, historical records, and alarm notifications. These sensors are well suited for offices, classrooms, retail stores, hospitals, and other indoor environments.

Key Features

• Multi-sensor integration for comprehensive indoor environment monitoring
• Temperature, humidity, light, and motion detection for comfort and occupancy insights
• CO₂ monitoring (AM305L only) for indoor air quality management
• Traffic light LED indicator and buzzer for intuitive device status and threshold alarms
• Local data storage and retransmission to prevent data loss
• Ultra-low power consumption with long battery life
• Flexible power options: replaceable batteries or DC power supply
• Easy configuration via NFC and USB Type-C
• Remote device management via Milesight Development Platform

AM304L

• Temperature
• Humidity
• Light
• Motion (PIR)
• LoRaWAN® communication
• Internal antenna

AM305L

• Temperature
• Humidity
• Light
• Motion (PIR)
• CO₂ (NDIR sensor)
• LoRaWAN® communication
• Internal antenna

Connectivity & Platform

• LoRaWAN compliant with standard gateways and network servers
• Supports OTAA and ABP activation
• Compatible with Milesight Development Platform for centralized monitoring
• Supports Milesight D2D protocol for ultra-low latency communication (AM304L & AM305L only)

Technical Documents

• AM30x(L) Datasheet
• AM304L & AM305L User Guide

LoRa is a registered trademark of Semtech Corporation. LoRaWAN is a trademark of the LoRa Alliance. USB-C is a registered trademark of USB Implementers Forum. MCCI and MCCI Catena are registered trademarks of MCCI Corporation. All other trademarks are the property of their respective owners.