Ambience Monitoring Sensor

Indoor Air Quality (IAQ) Monitoring

3 in 1 iaq sensor am103 front small
3 in 1 iaq sensor am103l front2 small
3 in 1 iaq sensor am103 left small
3 in 1 iaq sensor am103 back small
  • Detect CO2, Humidity and Temperature
  • Traffic Light Status Indicator
  • Hibernation Mode for Low Power Consumption
  • Wireless Installation with Anti-Theft Protection
  • Support Data Storage and Retransmission
  • 2.13 -Inch E-Ink Screen (AM103)
  • Vivid Emoticon Indication (AM103)
  • Battery Life up to 3 Years (AM103) / 4 Years (AM103L)

Ensuring Health of Occupants Everywhere

AM103/AM103L is a compact IAQ sensor for detecting CO2 concentration, humidity and temperature accurately and economically.


Milesight 47,000 LoRaWAN® IAQ Sensors in Canadian Schools

With province-wide LoRaWAN® IAQ solution deployment, students and staff in Quebec's public schools are now in a healthier learning environment with more helpful insights. Check how Milesight has made it happen!

Learn More

Easy and Comfy
Seeing CO2 Directly

Monitor and display real-time data on what matters in your indoor air quality.

3 in 1 iaq sensor traffic light indicator 3 in 1 iaq sensor emoticon
  • Traffic Light Status Indicator
  • Emoticon Indication
3 in 1 iaq sensor emoticon polluted
3 in 1 iaq sensor emoticon excellent
3 in 1 iaq sensor emoticon bad
3 in 1 iaq sensor emoticon polluted button
3 in 1 iaq sensor emoticon excellent button
3 in 1 iaq sensor emoticon bad button

* Think about opening windows or consider ventilation.

* Excellent air quality.

* Open windows or turn on ventilation immediately.

Clearer View of CO2 Concentration and Temperature

In the upgraded display mode of the AM103, the values of CO2 concentration and temperature are bolded in a larger space.

3 Sensors in 1

Built-in high accuracy sensors to track the invisible elements of the air to ensure comfort at every moment.

3 in 1 iaq sensor humidity


Higher relative humidity indicates higher level of moisture in the air which lead to cold, flu symptoms, and risk for toxic mold.

3 in 1 iaq sensor co2


In the upgraded display mode of the AM103, the values of CO2 concentration and temperature are bolded in a larger space.

3 in 1 iaq sensor temperature


Cold temperatures can suppress the immune system and aid the spread of viruses.

Indoor Air Monitoring (IAQ) Solution

At Milesight, we help you and your people to live in a safer and healthier facilities.
Towards that end, real-time data about air quality is essential. And that starts with
our one-stop solution for indoor air quality (IAQ)

Learn More

Compact Design that Fits Your Need

  • Light/Dark Color Theme
  • With E-Ink Screen


3 in 1 iaq sensor with screen 3 in 1 iaq sensor battery powered 3 in 1 iaq sensor 3 years


3 in 1 iaq sensor without screen 3 in 1 iaq sensor 4 years
  • Without E-Ink Screen
  • Longer Battery Life
3 in 1 iaq sensor light dark theme

*When AM103 detects the temperature beyond the range from 0°C to 40°C, the screen will turn off automatically.

3 in 1 iaq sensor smart screen mode

Smart Screen Mode for Energy-Saving Operations

When the current collected value is close to the last value*, the screen will stop updating to save power.

* When the reading is within a certain range (temp. ≤ ±0.5°C and hum. ≤ ±3% and CO2 ≤ ±50 ppm).
** When Screen Smart Mode is enabled, the minimum refresh interval is customizable from 2 to 1080 minutes to refresh the screen.

Hibernation Mode for Ultra-Low Power Consumption

  • Use hibernation when you know you will not be using the IAQ sensor for an extended period of time to save more power.
  • Hibernation uses less power than smart screen mode because data collection will automatically turn off.

*Customers can turn on the LoRa uplink with hibernation mode enabled, in which case the screen will still keep displaying hibernation mode, but only to save screen power consumption.

3 in 1 iaq sensor long battery life

Multi-Year Battery Operation

Built-in 2 × 2700 mAh ER14505 Li-SOCL2 replaceable
batteries ensure more than 3 years' service life.

Energy Efficiency Solution

Everything from the way we operate to what we consume is moving toward more energy-efficient ways. Check how Milesight sensing products can help you.

LoRaWAN® Based

  • Penetrating Signals: data transmission range up to 2 km in urban areas and 15 km in rural areas
  • High Compatibility: compliant with standard LoRaWAN® gateways and network servers

Cloud Data Management
Milesight IoT Cloud

  • Data Visualization Dashboard:
    All figures in a glance
  • Automatic Triggers:
    Interactive collaboration with Milesight IoT sensors
    to realize scene-based automation
  • Regular Reports & Real-Time Alerts:
    Data-based insights
  • Android & iOS App:
    Manage devices at your fingertips

NFC Configuration

Switching On/Off & Configuring the Devices Wirelessly

3 in 1 iaq sensor nfc configuration 1

1st Step

Install the
Milesight ToolBox

3 in 1 iaq sensor nfc configuration 2

2nd Step

Enable NFC and run ToolBox,
then attach your phone to the device

3 in 1 iaq sensor nfc configuration 3

3rd Step

Verify the password
and start configuring

Explore More About NFC Configuration >>

Installation in Better Ways

Wall Mounting

Fixed by 3M Tape


Wireless Transmission
Tx Power16 dBm (868 MHz)/22 dBm (915 MHz)/19 dBm (470 MHz)
Sensitivity-137dBm @300bps
ModeOTAA/ABP Class A
Range-20°C to + 70°C
Accuracy0°C to + 70°C (+/- 0.3°C), -20°C to 0°C (+/- 0.6°C)
Range0% to 100% RH
Accuracy10% to 90% RH (± 3%), below 10% and above 90% RH (± 5%)
Resolution0.5% RH
Carbon Dioxide (CO2)
Range400 to 5000 ppm
Accuracy± (30 ppm + 3 % of reading)
Resolution1 ppm
Display & Configuration
DisplayAM103: 2.13-inch Dark & Light E-Ink Screen
AM103L: Not Support
Button1 × Power Button
LED1 × Traffic Light Status Indicator
ConfigurationMobile App via NFC
Physical Characteristics
Power Supply2 × 2700 mAh ER14505 Li-SOCl2 Replaceable Batteries
Battery Life1
(10 min interval)
AM103: Around 3 Years
AM103L: Around 4 Years
Operating Temperature-20°C to +60°C (E-Ink Screen: 0°C - 40°C)
Relative Humidity0% to 95% (non-condensing)
Ingress ProtectionIP30
Dimension68 × 65 × 20.5 mm (2.68 × 2.56 × 0.81 in)
InstallationWall Mounting


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