UK industrial technology since 1998 Authorised Milesight distributor Ships from the UK
Milesight AM305L indoor ambience monitoring sensor
AM305L-868M

Milesight AM305L Indoor Ambience Monitoring Sensor

Authorised Milesight UK Distributor
In stock UKMilesight
Where it sits in the stack
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£172.08 ex VAT (£206.50 inc. VAT)

5-in-1 indoor ambience sensor: temperature, humidity, light, PIR/motion and CO2

AM305L is a LoRaWAN indoor ambience monitoring sensor measuring temperature, humidity, light, motion and CO2. Its decisive spec is the NDIR CO2 sensor, 400 ~ 5000 ppm, ±(30 ppm + 3 % of reading), which the AM304L lacks. Unlike the AM307 and AM308, the AM305L has no E-ink display, no TVOC, pressure or PM sensors, and adds Milesight D2D.

Sensor set (Ordering Information)Temperature, Humidity, Light, Motion, CO2 — with no E-ink display, and no TVOC, barometric pressure or PM2.5/PM10 sensors

Compare all 3 models in this range →

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In stock · typically dispatched within 14 working days from the UK

● Quotes answered within one working day · UK support

Delivery & assurance

  • Ships from the UK
  • £14.25 flat UK delivery
  • Secure checkout — card, Klarna, invoice
  • Manufacturer's warranty

Ships to the UK & EU · VAT invoice provided · Delivery & returns

Questions about this product? Call our UK team: 023 9223 3611

Solutions this product serves
Smart buildings

Description

The AM305L is a Milesight indoor ambience monitoring sensor — 5-in-1 indoor ambience sensor: temperature, humidity, light, PIR/motion and CO2.

Key features

  • 5-in-1 indoor ambience sensor: temperature, humidity, light, PIR/motion and CO2
  • Part of the AM300L series
  • LoRaWAN wireless, OTAA/ABP Class A, multi-band
  • Battery life approx. 3-4 years
  • NFC configuration; CO2 monitoring for healthier spaces

Supplied by Indiott, the UK industrial IoT specialists, with engineer-led support. Request a quote for pricing, stock and lead times.

Additional information

Weight 0.188 kg

AM305L-868M specifications

Measured parametersTemperature, Humidity, Light, Motion, CO2
Wireless Transmission TechnologyLoRaWAN®, Milesight D2D (AM304L & AM305L only; AM307/AM308 are LoRaWAN® only)
FrequencyCN470/RU864/IN865/EU868/US915/AU915/KR920/AS923-1&2&3&4
Tx Power16dBm (868MHz) / 22dBm (915MHz) / 19dBm (470MHz)
Work ModeOTAA/ABP Class A
CO2 Operating PrincipleNondispersive Infrared (NDIR)
CO2 Range400 ~ 5000 ppm
CO2 Accuracy / Resolution± (30 ppm + 3 % of reading) (0°C ~ 50°C, 0% to 85% RH); Resolution 1 ppm
TemperatureRange -20°C ~ 60°C; Typ. ±0.3°C (-20°C ~ 0°C), ±0.2°C (0°C ~ 60°C); Resolution 0.1°C; Digital CMOSens® technology (MEMS)
HumidityRange 0% ~ 100% RH; Typ. ±2% RH (25°C); Resolution 0.5% RH; Digital CMOSens® technology (MEMS)
MotionPassive infrared (PIR); Detection Range 80° Horizontal, 55° Vertical, 3m; Status Vacant/Trigger
LightPhotodiode; Range 0-60000 Lux
DisplayNot Support (AM304L & AM305L & AM308L). The 4.2-inch Black & White E-Ink Screen is fitted to AM307 & AM308 only
BuzzerNot fitted (AM307 & AM308: 1 × Buzzer)
LED1 × Traffic Light Status Indicator
Advanced FeaturesCalibration, Threshold Alarm, Data Storage (4320 entries), Data Retrievability, Data Retransmission, Button Lock, D2D Data Transmission, D2D Controller
Power Supply1. 4 × 2700 mAh ER14505 Li-SOCl2 Replaceable Batteries; 2. 5V/1A by Type-C Port
Battery Life (10 min interval, 25°C)Around 11 Years (SF7, EU868 & US915); Around 6.3 Years (SF10, EU868); Around 3.7 Years (SF10, US915)
Operating Temperature / Humidity / IP-20°C - 60°C; 10% - 90% RH (non-condensing); IP30
Dimension / Housing100.8 × 114 × 22 mm (3.97 × 4.49 × 0.87 in); PC+ABS (V0), White; wall mounting via 3M tape or screws

Specifications taken from the manufacturer datasheet.

Which version do I need?

The -868M suffix denotes the EU868 band, which is the correct LoRaWAN frequency for UK deployment; the datasheet lists CN470/RU864/IN865/EU868/US915/AU915/KR920/AS923-1&2&3&4, with 16dBm Tx power at 868MHz. Within this family the "L" suffix marks the screenless variants: AM304L, AM305L and AM308L have no display, while AM307 and AM308 carry the 4.2-inch E-ink screen.

Typical applications for the AM305L-868M

  • Office ambience and comfort monitoring
  • Retail stores
  • Classrooms and education spaces
  • Hospitals and healthcare rooms
  • Indoor CO2 and occupancy (PIR) monitoring

Buying guides for this product

CO2 Monitors For Schools →LoRaWAN CO2 Sensor →

Frequency band

Supplied on EU868, the LoRaWAN band used in the UK and across Europe. That is the default and you do not need to ask for it — the -868M in the part number is the EU868 build.

The same AM305L-868M unit also covers RU864 and IN865. Those bands share the 863–870 MHz radio with EU868, so one device can be set to any of them in its own configuration — no different part number needed.

CN470, US915, AU915, KR920 and AS923 are a different radio and therefore a different build. Milesight makes them and we can order them: tell us where the devices are being deployed and we will confirm the part number, price and lead time.

Not sure which band applies where? The Things Network publishes the LoRaWAN frequency plan for every country.

Complete the stack

Products that work with this one — connect it, power it, and get it online.

Which gateway do I need? Compare the Milesight range, from £98.76 →

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AM305L-868M — frequently asked questions

Does the AM305L have a screen?

No. The datasheet's Display row states "AM307 & AM308: 4.2-inch Black & White E-Ink Screen" and "AM304L & AM305L & AM308L: Not Support". The AM305L reports over LoRaWAN and shows status locally through its single traffic-light status indicator.

What is the AM305L's CO2 measuring range and accuracy?

400 ~ 5000 ppm using a nondispersive infrared (NDIR) sensor, with accuracy ± (30 ppm + 3 % of reading) between 0°C ~ 50°C and 0% to 85% RH, and 1 ppm resolution.

What is the difference between the AM305L and the AM304L?

The Ordering Information table lists AM304L as Temperature, Humidity, Light, Motion; AM305L is Temperature, Humidity, Light, Motion, CO2. The CO2 sensor is the only sensor difference — both share Milesight D2D, 4320-entry data storage and no display.

How long do the batteries last on EU868?

With 4 × 2700 mAh ER14505 Li-SOCl2 replaceable batteries at a 10-minute interval and 25°C, around 11 years at SF7 (EU868 & US915) and around 6.3 years at SF10 (EU868). It can also be powered continuously from 5V/1A over the Type-C port.

Does the AM305L support Milesight D2D and the Milesight IoT Cloud?

It supports Milesight D2D — the datasheet lists "LoRaWAN®, Milesight D2D" for AM304L and AM305L, with D2D Data Transmission and D2D Controller as advanced features, giving direct control without a gateway. Milesight IoT Cloud integration, however, is listed for AM307 & AM308(L) only; the AM305L is managed via the Milesight Development Platform.

How much does the Milesight AM305L Indoor Ambience Monitoring Sensor cost in the UK?

The Milesight AM305L Indoor Ambience Monitoring Sensor is £172.08 ex VAT from Indiott, a UK distributor. The price is published rather than quote-only, and we invoice with VAT (PSI Technologies Ltd, VAT GB 730 2340 83). UK delivery is a flat £14.25 per order ex VAT, whatever the weight.

What is the lead time and delivery cost for the Milesight AM305L Indoor Ambience Monitoring Sensor?

The Milesight AM305L Indoor Ambience Monitoring Sensor is in stock and typically dispatched within 14 working days from the UK. UK delivery is a flat £14.25 per order ex VAT, whatever the weight or how many items you order. We ship to GB and the EU and provide a VAT invoice with every order.

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