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  1. Metrology - Laboratory
  2. Analytical Instrumentation
  3. Room air quality sensor
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Indoor air quality sensor AM103
roomCO2relative humidity

Indoor air quality sensor - AM103 - Milesight IoT - room / CO2 / relative humidity
Indoor air quality sensor - AM103 - Milesight IoT - room / CO2 / relative humidity
Indoor air quality sensor - AM103 - Milesight IoT - room / CO2 / relative humidity - image - 2
Indoor air quality sensor - AM103 - Milesight IoT - room / CO2 / relative humidity - image - 3
Indoor air quality sensor - AM103 - Milesight IoT - room / CO2 / relative humidity - image - 4
Indoor air quality sensor - AM103 - Milesight IoT - room / CO2 / relative humidity - image - 5
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Characteristics

Type
indoor, room
Measured parameter
temperature, CO2, relative humidity
Output
LoRaWAN, wireless
Protection level
IP30
Other characteristics
with screen, wall-mounted, with data logger, for building automation systems

Description

Overview
  • Compact LoRaWAN® air quality sensor for reliable, cost-effective monitoring of indoor CO2 concentration, humidity, and temperature.
  • Models: AM103 (with 2.13-inch B/W E-Ink display) and AM103L (no display) — both share the same sensing capabilities and enclosure design.
  • Key on-device features: tri-color traffic-light LED indicator, emoticon display (AM103), NFC configuration, long battery life, and flexible wireless deployment.


Core Features
  • Essential IAQ Monitoring: Accurate measurement of CO2, temperature and humidity covering core indoor environmental parameters.
  • Air Quality Visualization: Integrated tri-color LED traffic-light indicator and (AM103) emoticon display for instant local feedback.
  • Long Battery Life: Dual replaceable batteries enabling multi-year operation (AM103: up to ~3 years typical / AM103L: up to ~4 years typical depending on region/SF and reporting interval).
  • Easy NFC Configuration: Quick setup and configuration via NFC using a smartphone; alternative local control via power button.
  • Wireless Connectivity: LoRaWAN® OTAA/ABP Class A support for long-range low-power transmissions.


Visual IAQ Indicators
  • Traffic Light Status Indicator: color-coded LED signals for Excellent / Moderate / Poor air quality.
  • Emoticon Indication (AM103 only): human-friendly emoticon states (Green = Excellent, Yellow = Normal, Red = Poor).
  • Enhanced Data Display (AM103 only): clear presentation of CO2 trends, humidity, status icons and last update time on the E-Ink screen.


Energy Saving & Operation Modes
  • Smart Screen Mode: reduce display refresh when readings remain stable to save power; screen refresh triggers on value changes or configured intervals.
  • Hibernation Mode: for extended idle periods, disables data collection and greatly reduces power consumption (useful for seasonal or long-term idle deployments).


Management & Integration
  • Device Management: compatible with Milesight development platform / IoT Cloud and supports bulk configuration and OTA updates.
  • Configuration Methods: NFC mobile app configuration and downlink configuration via LoRaWAN network.
  • Advanced On-device Capabilities: calibration, threshold alarm configuration, local data storage (640 entries), data retrievability and retransmission, screen hibernate and smart screen modes.


Use Cases
  • Smart buildings, offices and workplaces for occupancy-aware HVAC control and indoor comfort monitoring.
  • Education and libraries for space utilization and air quality tracking.
  • Healthcare, hospitality and public facilities for continuous IAQ monitoring and regulatory compliance support.
  • Smart city and remote deployments (with appropriate LoRaWAN gateway infrastructure).


Technical Specifications
  • Wireless Transmission: Technology: LoRaWAN®; Antenna: Internal; Frequency bands: CN470 / IN865 / RU864 / EU868 / US915 / AU915 / KR920 / AS923-1 & 2 & 3 & 4; Tx Power: 16 dBm (868 MHz) / 22 dBm (915 MHz) / 19 dBm (470 MHz); Sensitivity: -137 dBm @300bps; Mode: OTAA/ABP Class A.
  • Temperature Sensor: Operating principle: Digital CMOSens® (MEMS); Range: -20 °C to 60 °C; Accuracy: Typ. ±0.3 °C (-20 °C ~ 0 °C), ±0.2 °C (0 °C ~ 60 °C); Resolution: 0.1 °C.
  • Humidity Sensor: Operating principle: Digital CMOSens® (MEMS); Range: 0% - 100% RH; Accuracy: Typ. ±2% RH (25 °C); Resolution: 0.5% RH.
  • Carbon Dioxide (CO2): Sensor type: Nondispersive Infrared (NDIR); Range: 400 to 5000 ppm; Accuracy: ±(30 ppm + 3% of reading) (0 °C to +50 °C); Resolution: 1 ppm.
  • Display: AM103: 2.13-inch Black & White E-Ink screen; AM103L: no E-Ink display.
  • Buttons & LEDs: 1 × Power/Reset button; 1 × Traffic Light Status Indicator (tri-color LED); AM103 includes emoticon display and enhanced data presentation.
  • Software / Configuration: Power on/off via Mobile App (NFC) or Power Button; Configuration via NFC and LoRaWAN downlink; supports calibration, threshold alarm, data storage (640 entries), data retrieval and retransmission, smart screen and hibernation modes.
  • Power Supply: 2 × 2700 mAh ER14505 Li-SOCl2 replaceable batteries.
  • Battery Life (example, 10 min interval, 25 °C): AM103: ~4.5 years (SF7, EU868 & US915); ~3 years (SF10, EU868); ~2.3 years (SF10, US915). AM103L: ~5 years (SF7, EU868 & US915); ~3.3 years (SF10, EU868); ~2.5 years (SF10, US915). Actual life depends on reporting interval, region and network settings.
  • Environment & Physical: Operating temperature: -20 °C to +60 °C (E-Ink Screen: 0 °C - 40 °C); Relative humidity: 0% to 95% (non-condensing); Ingress protection: IP30; Housing & Color: PC + ABS, White; Weight: 182.5 g (batteries included); Dimensions: 68 × 65 × 20.5 mm (2.68 × 2.56 × 0.81 in); Installation: Wall mounting via 3M tape or screws.
  • Approvals: CE, FCC, ISED; Environmental: RoHS.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
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