Milesight AM319 LoRaWAN® Indoor Ambience Monitoring Sensor (Ozone & Formaldehyde Version) - EU 868MHz


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Product Features

  • Integrated with multiple sensors like humidity, temperature, CO2, light, barometric pressure, PM2.5, PM10, etc.
  • Multiple display modes and clear emoticon to easily understand the comfort levels via screen
  • Support batteries or DC power supply
  • Equipped with traffic light indicator and buzzer to indicate device status and threshold alarms
  • Store locally 18, 000 historical records and support retransmission to prevent data loss
  • Compliant with standard LoRaWAN® gateways and network servers
  • Quick and easy management with Milesight IoT Cloud


AM300 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. AM300series 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.

    Product Specifications

    Wireless Transmission
    Technology LoRaWAN®
    Frequency EU868
    Tx Power 16dBm (868 MHz)
    Sensitivity -137dBm @300bps
    Work Mode OTAA/ABP Class C
    Operating Principle Digital CMOSens® technology (MEMS)
    Range -20°C to - 60°C
    Accuracy ± 0.2°C
    Resolution 0.1°C
    Operating Principle Digital CMOSens® technology (MEMS)
    Range 0% to 100% RH
    Accuracy ± 2% RH
    Resolution 0.5% RH
    Operating Principle Passive infrared (PIR)
    Detection Range 80 ° Horizontal, 55 ° Vertical, 5m
    Status Vacant/Occupied
    Operating Principle Photodiode
    Range 0-60000 Lux (Determine as 6 levels, 0-5)
    Carbon Dioxide (CO2)
    Operating Principle Photoacoustic
    Range 400 - 2000ppm
    Accuracy (0°C to +50°C) ± (50 ppm+ 5 %of reading) (-10°C to +60°C)
    Resolution 1 ppm
    Operating Principle MOX (MEMS)
    Range 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
    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)
    Operating Principle Electrochemical
    Range 0 - 1.25 mg/m3
    Accuracy ±10 %
    Resolution 0.01 mg/m3
    Working Life 6 Years
    Ozone (O3)
    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
    • Mobile App via NFC
    • PC software via NFC or USB Type-C port
    Physical Characteristics
    Power Supply 5V/1A by Type-CPort
    Ingress Protection IP30
    Operating Temperature -20°C - 60°C (E-Ink Screen: 0°C - 40°C)
    Relative Humidity 10% - 90% (non-condensing)
    Dimensions 100.8 × 114 × 22 mm (3.97 × 4.49 × 0.87 in)
    Installation 3M Tape Mounting, Wall Screw Mounting, 86 Box Mounting
    Regulatory CE, FCC
    Environmental RoHS


    Product Downloads

    Shipping Policy

    We provide worldwide shipping using only tracked shipping services. Currently all our international shipments are performed by TNT Express and FedEx. Local shipments to Greece are performed either directly from us or using local shipping couriers (i.e. ELTA Courier).

    We ship products within 1-3 days after the order is placed. You will be notified by email when your order is dispatched and you will receive the relevant shipment tracking number which you can use to track your shipment.

    Shipment Tracking

    You can use the following links to track your order using the provided tracking number in the case of international orders.
  • Orders shipped with TNT Express: TNT Tracking
  • Orders shipped with FedEx: FedEX Tracking
  • General Return Policy

    We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

    To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

    To start a return, you can contact us at If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

    For any further information, help and support regarding the shipping and/or return process you can contact us at:

  • Email:
  • Telephone: +30 210 421 2380