---
lang: "en"
title: "AM304L LoRaWAN Indoor Environment Monitoring Sensor"
sku: "AM304L-868M"
canonical_url: "https://shop.marcomweb.it/en/temperature/am304l-lorawan-indoor-environment-monitoring-sensor"
brand: "MARCOM S.r.l."
end_of_life: "false"
---

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AM304L-868M: LoRaWAN 4-in-1 Indoor Environmental Monitoring Sensor: Temperature, Humidity, Light, PIR

The AM300 series is a compact indoor environment monitoring sensor for measuring temperature, humidity, light, CO2 concentration, HCHO/O3 level, barometric pressure, PM2.5, PM10, and motion. Data will be shown on the E-ink screen in real-time, which helps to measure the indoor environment and comfort. The AM300 series is widely used for offices, shops, classrooms, hospitals, etc. Sensor data is transmitted using LoRaWAN® technology. By combining the Milesight LoRaWAN® gateway and Milesight IoT Cloud, users can manage all sensor data remotely and visually.

**AM304L is a 4-in-1 sensor**: A single device capable of detecting 4 parameters:

- **Temperature**
- **Humidity**
- **Motion (PIR)**
- **Light**

## Technical Features

- Technology: LoRaWAN
- Antenna: Internal
- Frequency: CN470/RU864/IN865/EU868/US915/AU915/KR920/AS923-1&2&3&4
- Operating Mode: OTAA/ABP Class A

#### Temperature

- Operating Principle: Digital CMOSens® technology (MEMS)
- Range: -20°C~60°C
- Accuracy: Typ. ±0.3°C (-20°C ~ 0°C), ± 0.2°C (0°C ~ 60°C)

#### Humidity

- Operating Principle: Digital CMOSens® technology (MEMS)
- Humidity Range: 0% ~ 100% RH
- Accuracy: Typ. ± 2% RH (25°C)

#### Motion

- Operating Principle: Passive Infrared (PIR)
- Detection Range: 80° Horizontal; 55° Vertical; 3m
- Status: Free/Unoccupied; Activated/Detected

#### Light

- Operating Principle: Photodiode
- Range: 0-60,000 Lux
- Sending Mode: Illuminance Value; Illuminance Level
- Accuracy: ±30%

#### Physical Specifications

- Protection Rating: IP30
- Enclosure: PC+ABS (V0)
- Color: White
- Dimensions: 100.8 × 114 × 22 mm
- Weight: 181.25 g

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Source: https://shop.marcomweb.it/en/temperature/am304l-lorawan-indoor-environment-monitoring-sensor

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