Jeroen Smits
Business Development Manager
Milesight AM103 / AM103L – Indoor Air Quality Sensor (LoRaWAN®)
The Milesight AM103 and AM103L are advanced indoor air quality sensors designed to monitor key environmental parameters such as temperature, humidity, CO₂ and TVOC. Using LoRaWAN® technology, these sensors enable wireless, long-range data transmission with minimal power consumption.
Ideal for applications where indoor climate directly impacts health, comfort and performance, such as offices, healthcare facilities, cleanrooms and educational buildings.
Key Features
- Multi-parameter monitoring
Measures temperature, relative humidity, CO₂ and TVOC in one compact device - LoRaWAN® wireless communication
Long-range, low-power data transmission without complex infrastructure - E-ink display (AM103L)
Clear, energy-efficient display for real-time local readings - Traffic light status indicator
Visual indication of air quality (green / orange / red) - High accuracy sensors
Reliable data for critical indoor environments - Ultra-low power consumption
Battery life up to several years - Easy installation
Compact design for wall mounting or placement in any indoor space
Measured Parameters
- Temperature
- Relative Humidity
- CO₂ (Carbon Dioxide)
- TVOC (Total Volatile Organic Compounds)
Why Indoor Air Quality Matters
Indoor air quality has a direct impact on:
- Health and wellbeing
- Cognitive performance and productivity
- Infection control (especially in healthcare environments)
- Compliance with indoor climate standards
With the AM103 series, you gain continuous insight into air quality, enabling timely adjustments to ventilation and climate control systems.
Applications
The Milesight AM103 / AM103L is suitable for a wide range of environments:
- Offices and commercial buildings
- Hospitals and healthcare facilities
- Cleanrooms and controlled environments
- Schools and universities
- Meeting rooms and public spaces
- Laboratories
Integration & Connectivity
Thanks to LoRaWAN®, the AM103 series can be easily integrated into:
- Building Management Systems (BMS)
- Smart building platforms
- IoT dashboards and cloud environments
This allows for central monitoring, data analysis and automated control of indoor climate conditions.
Technical specifications
Technical Specifications – Milesight AM103 / AM103L
Measured Parameters
Temperature
Range: -20°C to +60°C
Accuracy: ±0.2°C to ±0.3°C
Resolution: 0.1°C
Relative Humidity
Range: 0 – 100 %RH
Accuracy: ±2% RH (typical)
Resolution: 0.5% RH
CO₂ (Carbon Dioxide)
Sensor type: NDIR (Non-Dispersive Infrared)
Range: 400 – 5000 ppm
Accuracy: ±(30 ppm + 3% of reading)
Resolution: 1 ppm
Wireless Communication
Technology: LoRaWAN® (Class A)
Frequency bands: EU868, US915, AU915, AS923, CN470, etc.
Transmission power: up to 22 dBm
Sensitivity: -137 dBm @300 bps
Range:
Up to 2 km (urban)
Up to 15 km (rural)
Display & Interface
AM103: 2.13” E-ink display
AM103L: No display (longer battery life)
LED: Traffic light status indicator (air quality)
Configuration: NFC via mobile app
Button: 1× power button
Power Supply
Battery: 2 × 2700 mAh ER14505 Li-SOCl₂ (replaceable)
Battery life:
AM103: up to 3 years
AM103L: up to 4 years
Physical Specifications
Dimensions: ~68 × 65 × 20.5 mm
Weight: ~92 g (including batteries)
Mounting: Wall mounting / surface installation
Protection class: IP30
Operating Conditions
Operating temperature: -20°C to +60°C
Operating humidity: 0 – 95% RH (non-condensing)
Additional Features
Local data storage (with retransmission)
Traffic light CO₂ indication (visual alerts)
Ultra-low power modes (hibernation / smart display)
Compatible with standard LoRaWAN® gateways and platforms