COVID-19 Risk Proxy Wireless CO2 Sensor AM103


Milesight AM103 is a minimist CO2 monitor running on batteries for measurement of occupancy, and even as a proxy to risk of COVID-19 airborne infection.

It works as a standalone device or wirelessly networkable over standard LoRaWAN. Procurement lead-time typically 1-2 weeks. All frequency bands are of the same price.

  • E-ink Screen $1,660
  • No Screen $1,560
Milesight IoT provides LoRaWAN® device and SaaS cloud platform

Introducing Milesight

COVID-19 Risk Proxy CO2 Sensor

Milesight AM103 CO2 COVID-19 Risk Proxy Monitor IAQ IoT LoRaWAN

The outdoor gas sensor works perfectly with Milesight IoT Cloud (Web & App), which allows you to monitor your data in the office or on the go. With a drag-and-drop experience, Milesight IoT Cloud provides rich features such as intuitive widgets, triggers, sharing and transfer ownership of devices, layers, etc.

Research found that CO2 is co-exhaled with aerosols containing SARS-CoV-2 by COVID-19-infected people, and can be used as a risk proxy of SARS-CoV-2 concentrations indoors.

Indoor CO2 measurements hold promise for mass monitoring of indoor aerosol transmission risk for COVID-19 and other respiratory diseases.

While it is technically not feasible to measure any airborne virus directly, using CO2 concentration as a risk proxy indicator becomes viable.

Milesight AM103 CO2 COVID-19 Risk Proxy Monitor IAQ IoT LoRaWAN

Optional e-ink Screen

Featuring a 2.13 Inch e-ink screen with selectable screen options such as dark or light background, or no screen at all.

Traffic Light

Traffic light status indicator as Green-Yellow-Red for people to read occupancy level and COVID-19 risk from a distance.


As a show of ppm level of CO2 may make no sense to some people, AM103 uses vivid emoticon indication option as Excellent-Polluted-Bad, for people needing less numbers on wall.


NFC Setup Tool

Use your mobile phone NFC proxy function to configure and to setup alert/alarm thresholds of the Monitor conveniently.

2-4 years operation by 2 × Li-SOCl2 replaceable batteries in 10-min reporting interval

Long Battery Life

2 × 2700 mAh ER14505 Li-SOCl2 replaceable batteries are included for typically 2-4 years of run time as tested on 10 min reporting interval to a LoRaWAN gateway.

One can even disable this networking function for even longer battery life.

Milesight AM103 CO2 COVID-19 Risk Proxy Monitor IAQ IoT LoRaWAN

LoRaWAN Settings

Use your mobile phone NFC function to configure networking parameters such as EUIs, LoRaWAN Version, Join Type, Spread Factor, TX Power, Support Frequency, ADR Mode, Confirmation Mode, Rejoin Mode, Reporting Interval (from 1 minute) …

Portable or Wall-mounting

AM103 can be used as a portable CO2 sensor as it is running on batteries.

Or you can use the enclosed 3M tape to adhere it on wall.

No-screen version is available if you want the measures be used only internally, such as in classrooms and clinics.

Milesight AM103 Display Options
Weight 1 kg
Dimensions 20 × 15 × 5 cm
LoRaWAN Frequency Band

CN470, RU864, IN865, EU868, US915, AU915, KR920, AS923

AM103 Options

E-ink Screen, No Screen



Milesight provides LoRaWAN® device and SaaS cloud platform
Milesight IoT provides LoRaWAN® device and SaaS cloud platform