| Model | AM307 | AM308 | AM319 |
|---|
| Wireless Transmission | Technology | LoRaWAN® |
| Frequency | CN470/RU864/IN865/EU868/US915/AU915/KR920/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 |
| Sensors | |
| 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 |
| Approvals | Regulatory | CE, RoHS |
