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Milesight  |  SKU: AM304L-868M

Milesight AM304L | 4-in-1 LoRaWAN IAQ & Occupancy Sensor

Price incl. 19% VAT
€101,00
Price excl. VAT
€84,87
Shipping calculated at checkout. Shipping policy

The Milesight AM304L is a 4-in-1 LoRaWAN indoor air-quality and occupancy sensor.

  • Four readings: ±0.2 °C temp, ±2% RH, light and PIR occupancy
  • Battery life: up to 7 years on 4× ER14505, USB-C option
  • Connectivity: LoRaWAN Class A (OTAA/ABP), NFC config, IP30

VAT & Business Purchases

Prices include VAT at the rate of your EU delivery country, so the price shown is the price you pay. EU businesses with a valid VAT number can buy VAT-free: enter your company name and VAT number at checkout and VAT is removed under the intra-community reverse-charge rules. Orders delivered within Cyprus always include Cyprus VAT.

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  • Warranty & Support: Consumer purchases are covered by the 2-year legal guarantee of conformity, and manufacturer warranty terms apply per brand. Our engineering team at shopioT provides technical support.

Delivery and Shipping

Tracked delivery to Cyprus, all EU member states, the United Kingdom and Switzerland via ACS Courier, Cyprus Post or FedEx. Orders ship from our warehouse in Nicosia, Cyprus, typically within 1–3 business days. See our Shipping Policy for delivery times.

EU business? Enter your company name and a valid EU VAT number at checkout to remove VAT (reverse charge).

Description

The Milesight AM304L is a battery-powered LoRaWAN® 4-in-1 indoor sensor that simultaneously monitors temperature, relative humidity, ambient light, and PIR occupancy. Part of the Milesight AM300 series, it is built for smart offices, classrooms, healthcare facilities, and commercial buildings where accurate environmental and occupancy data drives comfort, energy savings, and space optimisation.

Powered by four pre-installed ER14505 Li-SOCl₂ batteries for up to 7 years of maintenance-free operation, the AM304L is configured entirely tool-free via NFC tap (or USB-C with PC software) and integrates natively with Milesight IoT Cloud and the Milesight Development Platform, plus third-party Building Management Systems via open API and Webhooks.

Core Capabilities

Up to 7-Year Battery Life Four pre-installed 2700 mAh ER14505 Li-SOCl₂ replaceable batteries deliver up to 7 years of operation (SF7/EU868, 10-minute interval, 25°C). A USB Type-C port provides an optional 5V/1A wired power alternative for permanent installations.
High-Accuracy MEMS Sensing Temperature accuracy of ±0.2°C and humidity accuracy of ±2% RH via Digital CMOSens® MEMS technology, with 0.1°C and 0.5% RH resolution. An insulation design minimises heat from onboard electronics to preserve measurement integrity.
Light & PIR Occupancy Detection A photodiode reports ambient light across 6 levels (0–60,000 Lux), while the passive-infrared sensor (80° horizontal / 55° vertical, up to 5 m) reports occupied/vacant status — feeding HVAC control, lighting automation, and space-utilisation analytics.
Tool-Free NFC Setup & Data Integrity Configure in seconds via NFC tap with the Milesight ToolBox app, or via USB-C with the PC software. On-device historical storage with data retransmission resends stored readings to the server after network interruptions.

Typical Applications

Smart Offices & Corporate Buildings: Monitor workspace temperature, humidity, and occupancy in real time to enable demand-driven HVAC control and energy optimisation — cutting waste in unoccupied zones and improving thermal comfort.
Educational Facilities: Track classroom conditions across entire campuses with a single device SKU. Temperature, humidity, light, and occupancy data support ventilation scheduling and healthier learning environments.
Healthcare & Life Sciences: Maintain stable conditions across patient rooms and laboratory spaces, with on-device historical storage supporting audit-ready environmental records.
Space Utilisation & BMS Integration: PIR occupancy output feeds directly into Building Management Systems and space analytics platforms, enabling evidence-based facility planning and automated lighting or HVAC actuation.

Technical Integration

Key points for adding the AM304L to your LoRaWAN network:

Connectivity: LoRaWAN® Class A with OTAA or ABP join modes; EU868 (also supports CN470, US915, AU915, AS923, KR920, IN865, and RU864).
Network server & platform: Native Milesight IoT Cloud and Development Platform (bulk management, OTA updates, open API / Webhooks to third-party BMS); compatible with Milesight UG65/UG67/UG56/SG50 gateways and The Things Network, ChirpStack, and AWS IoT Core.
Power: Four pre-installed ER14505 Li-SOCl₂ batteries for up to 7 years; optional USB Type-C (5V/1A) wired power (does not charge the batteries).
Configuration: Tool-free via NFC tap with the Milesight ToolBox app, or via USB-C with the ToolBox PC software.
Mounting: 3M tape or wall screws, at a recommended installation height of at least 1.5 m.
Setup help: For deployment sizing, gateway selection, or platform integration, contact the shopioT technical team.

What's in the Box

1×AM304L Device (batteries pre-installed)
1×Mounting Bracket
1×3M Double-Sided Tape
3×Wall Mounting Kits
1×Theft-Deterring Screw
1×Quick Guide
1×Warranty Card

Note: the USB Type-C cable & power adapter is not included (ships with the AM319 only) and is available separately. A LoRaWAN® gateway is required for data transmission and is sold separately.

Frequently Asked Questions

What does the AM304L measure?

Temperature, relative humidity, ambient light (6 levels, 0–60,000 Lux), and PIR occupancy (occupied/vacant). Note: the AM304L does not measure CO₂, TVOC, or particulate matter — those are available on higher AM300 models (AM307/AM308/AM319).

How long does the battery last, and how is it powered?

Up to 7 years on four pre-installed 2700 mAh ER14505 Li-SOCl₂ batteries (SF7/EU868, 10-min interval). A USB Type-C port offers optional 5V/1A wired power; note the Type-C port does not charge the batteries.

Does it have a display or buzzer?

No. The AM304L has no E-ink screen or buzzer — those features are available on the AM307, AM308, and AM319 models.

Does it need a LoRaWAN gateway?

Yes. The AM304L is LoRaWAN® Class A and works with standard gateways and network servers (e.g. The Things Network, ChirpStack) plus Milesight UG65/UG67. A gateway is sold separately.

How is it configured?

Tool-free via NFC tap using the Milesight ToolBox mobile app, or via USB-C using the Milesight ToolBox PC software.

Where should it be installed?

On a wall or flat surface at least 1.5 m above the floor, with a clear path for the PIR and light sensors, away from windows, vents, and heat/cold sources, and not upside down.

Certifications

CE FCC RoHS

Specifications
  • Primary Communication Protocol
    LoRaWAN, Milesight D2D
  • Frequency/Region
    EU868
  • Antenna Type
    Internal
  • LoRaWAN Class
    Class A
  • Radio & Range

    TX power: 16 dBm (EU868)

    Sensitivity: -137 dBm @ 300 bps

  • Interfaces (I/O)
    LEDs, Button, USB Type-C, NFC
  • Configuration Method
    NFC, Downlink
  • Activation Method
    OTAA, ABP
  • Monitoring Parameters
    Temperature, Humidity, Light Intensity (Lux), Motion (PIR)
  • Measurement Technology

    Temperature and humidity: Digital CMOSens® (MEMS)

    Light: Photodiode

    Motion: Passive infrared (PIR)

  • Measurement Range

    Temperature: -20°C to +60°C

    Humidity: 0% to 100% RH

    Light: 0 to 60,000 lux

    PIR detection: 3 m, 80° (H) × 55° (V)

  • Measurement Accuracy

    Temperature: ±0.3°C (-20°C to 0°C); ±0.2°C (0°C to +60°C)

    Humidity: ±2% RH (at 25°C)

    Light: ±30% of reading

  • Measurement Resolution

    Temperature: 0.1°C

    Humidity: 0.5% RH

    Light: 1 lux

  • Power Source
    Battery (Non-rechargeable), USB
  • Power Input
    4 × 2700mAh ER14505 Li-SOCl2 replaceable batteries; or 5V / 1A via USB Type-C
  • Battery Type
    Li-SOCl2
  • Battery Capacity
    10800mAh
  • Battery Life
    ~14 years (SF7) / ~7.5 years (SF10), EU868; ~12.5 years (SF7) / ~3.9 years (SF10), US915; 10-min interval, 25°C
  • Dimensions
    100.8 × 114 × 22 mm
  • Weight
    181.25 g (with batteries)
  • Enclosure Material
    PC (Polycarbonate), ABS Plastic
  • Mounting Options
    Wall Mount
  • IP Rating
    IP30
  • Environment Rating
    Indoor
  • Operating Temperature
    -20°C to +60°C
  • Certifications
    CE, FCC, RoHS
  • Warranty
    2 Years

Document Library

AM304L Datasheet

AM305L User Manual

Payload Decoder

Firmware & SDK Download

Payment & Security

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