Milesight AM308 LoRaWAN Indoor Ambience Monitoring Sensor


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  • Free Shipping Total Purchase > RM150
  • Cash Back 1% of Total Purchase
  • 30 Days Return Policy
  • 1 Year Warranty
  • Refund Policy
  • 9 Sensors in 1
  • 4.2 Inch E-ink Screen
  • Vivid Emoticon Indication
  • Traffic Light Status Indicator

AM308 series is a compact indoor ambience monitoring sensor for measurement of temperature, humidity, light, CO2 concentration, HCHO/O3 level, TVOC, barometric pressure, PM2.5, PM10 and motion. The data will be shown on the E-ink screen in real-time, which helps to measure the indoor environment and comfort. AM308 series is widely used for offices, stores, classrooms, hospitals, etc.

Sensor data is transmitted using LoRaWAN ® technology. Combining Milesight LoRaWAN® gateway and Milesight IoT Cloud, users can manage all sensor data remotely and visually.

Main Features

  • Robust LoRaWAN® connectivity for indoor or HVAC environments
  • Integrated multiple sensors like temperature, humidity, light, air quality, etc.
  • Easy configuration via NFC
  • Multiple display mode and clear emoticon on the e-ink screen
  • Equipped with traffic light and buzzer to indicate threshold
  • Standard LoRaWAN® supported
  • Milesight IoT Cloud compliant
  • Battery or DC power supply

Ensuring Indoor Comfort and Health


9 Sensors in 1

Integrated 9 types of sensor to measure various ambience conditions

  • Temperature
  • Humidity
  • PIR
  • Light
  • TVOC
  • Barometric Pressure
  • CO2
  • O3
  • PM2.5 & PM10

AM300 Indoor Ambience Monitoring Sensor

Higher Accuracy with Better Insulation Design

Placement for temperature and humidity sensors is designed to isolate the heat generated when the chip is operating.

Superior Sensor with Strong Anti-Interference

Selection for HCHO sensor is dedicated to stable reading, particularly in its resistance to alcohol.

More Features with Bigger Screen

The AM300 Ambience Monitoring Sensor equips with a 4.2 inch E-ink screen to show the real-time ambience conditions in many ways.

Low Power Consumption

Smart Screen Mode

When PIR value is 0 (Vacant) and last for 20 mins, the screen will stop updating to save power.

Multi-Year Battery Operation

*4 × 2700 mAh ER14505 Li-SOCl2 Replaceable Batteries

**AM307/AM308 can also be powered via Type-C.

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

Store Capacity with 18000 Sets of Historical Data Records

Data can be stored in the device and cannot be manually deleted, further securing the traceability of the reported information.

Support Retransmission for Reliable Communication

With support for data retransmission, the device guarantees that the web server gets all the data even if the network is down occasionally.

Easy Configuration

Switching on/off and configuring the device via NFC technology from mobile phone or PC

Installation in Better Ways



Model AM307 AM308 AM319
Wireless Transmission Technology LoRaWAN®
Frequency AS923-1&2&3&4
Tx Power 16dBm(868MHz)/22dBm(915MHz)/19dBm(470MHz)
Sensitivity -137dBm @300bps
Work Mode OTAA/ABP Class A OTAA/ABP Class A OTAA/ABP Class C
Temperature Operating Principle Digital CMOSens® technology (MEMS)
Range -20°C – 60°C
Accuracy1 ± 0.2°C
Resolution 0.1°C
Humidity Operating Principle Digital CMOSens® technology (MEMS)
Range 0% – 100% RH
Accuracy1 ± 2% RH
Resolution 0.5% RH
Motion Operating Principle Passive infrared (PIR)
Detection Range 80 ° Horizontal, 55 ° Vertical, 5m
Status Vacant/Occupied
Light Operating Principle Photodiode
Range 0-60000 Lux (Determine as 6 levels, 0-5)
TVOC Operating Principle MOX (MEMS)
Range2 1.00~5.00 (IAQ Rating)
Accuracy ±1
Resolution 0.01
Barometric Pressure Operating Principle Piezoresistive absolute pressure sensor (MEMS)
Range 260 – 1260 hPa
Accuracy ±0.5 hPa
Resolution 0.1 hPa
Carbon Dioxide (CO2) Operating Principle Nondispersive Infrared (NDIR) Photoacoustic
Range 400 – 5000 ppm 400 – 2000 ppm
Accuracy ± (30 ppm + 3 % of reading) (0°C to +50°C) ± (50 ppm + 5 % of reading) (-10°C to +60°C)
Resolution 1 ppm 1 ppm
PM2.5 & PM10 Operating Principle Laser Scattering
Range 0 – 1000 μg/m3
Accuracy 0-100(±10μg/m3), 100-1000(±10 %) (-10°C to +60°C)
Resolution 1 μg/m3
Formaldehyde (HCHO)1 Operating Principle Electrochemical
Range 0 – 1.25 mg/m3
Accuracy ±10 %
Resolution 0.01 mg/m3
Working Life 6 Years
Ozone (O3)1 Operating Principle Electrochemical
Range 0 – 10 ppm
Accuracy ±5 % FS
Resolution 0.01 ppm
Working Life 2 Years
Display & Configuration Display 4.2-inch Black & White E-Ink Screen
Button 1 × Power Button + 1 × Reset Button
LED & Buzzer 1 × Traffic Light Status Indicator + 1 × Buzzer
Configuration 1. Mobile App via NFC 2. PC software via NFC or USB Type-C port
Physical Characteristics Power Supply 1. 4 × 2700 mAh ER14505 Li-SOCl2 Replaceable Batteries 2. 5V/1A by Type-C Port 5V/1A by Type-C Port
Battery Life2 (10 min interval) Around 3 Years Around 1 Year
Operating Temperature -20°C – 60°C (E-Ink Screen: 0°C – 40°C)
Relative Humidity 10% – 90% (non-condensing)
Ingress Protection IP30
Dimension 100.8 × 114 × 22 mm (3.97 × 4.49 × 0.87 in)
Installation 3M Tape Mounting, Wall Screw Mounting, 86 Box Mounting


Additional information
Weight 0.4 kg
Dimensions 19 × 12 × 6 cm
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