Skip to main content
Open search engine
Search
Close search engine Clear Search
English $
Products in the cart: 0. See details
Your cart is empty
Milesight

Motion, temperature and humidity sensor

Milesight WS203-868M is a wireless LoRaWAN occupancy, temperature, and humidity sensor designed for smart offices, buildings, hospitals, and other spaces requiring room utilisation monitoring. The PIR sensor detects movement at a range of up to 6 m, while interchangeable covers allow the detection field to be adapted to the installation location.

The WS203 measures temperature within a range of −20…+60°C with a typical accuracy of up to ±0,2°C and humidity from 0–100% RH with a typical accuracy of ±2% RH. The device features storage for 1000 records, data retransmission, Milesight D2D, NFC configuration, and a 4000 mAh battery providing up to approximately 10,7 years of operation under EU868/SF7 test conditions.

Go to full description
Availability:
In Stock
Shipping time: 31 dni
with VAT without VAT
Price $63.96
incl. 23% VAT

Shipping costs are not included in the price.

szt.

Opis

Produkty powiązane

WS203 — Space Utilisation and Environmental Condition Monitoring

Milesight WS203 is a wireless sensor combining PIR motion and occupancy detection with accurate temperature and humidity measurement.

The device makes it possible to determine room utilisation and monitor environmental conditions at the same time. Data transmitted via LoRaWAN can be used for space monitoring, occupancy analysis, and control of HVAC systems and building automation.

Occupancy and Environmental Conditions in One Device

PIR Detection up to 6 m

The passive infrared sensor detects the movement of people or animals and makes it possible to determine whether the monitored space is being used.

Temperature and Humidity

Built-in environmental sensors enable simultaneous monitoring of thermal comfort without the need to install an additional device.

Up to 10,7 Years of Operation

A 4000 mAh battery and energy-efficient LoRaWAN communication enable many years of operation without a permanent power supply.

Where Can the WS203 Be Used?

Offices and Open-Plan Spaces
Conference Rooms
Hospitals and Medical Facilities
Schools and Universities
Hotels
Smart Building
HVAC Control
Space Utilisation Analysis

PIR Sensor with Adjustable Detection Area

Technology
PIR — passive infrared
Maximum Range
6 m
Maximum Horizontal Angle
120°
Maximum Vertical Angle
100°

PIR Covers Adapted to the Room Layout

The WS203 works with different PIR lens covers that allow the monitoring area to be reduced or extended depending on the installation location.

This makes it possible to better adapt the sensor to a small room, corridor, workstation, or larger open space while reducing unwanted detection outside the area of interest.

Accurate Temperature and Humidity Measurement

Temperature Range
−20…+60°C
Accuracy −20…0°C
typ. ±0,3°C
Accuracy 0…+60°C
typ. ±0,2°C
Temperature Resolution
0,1°C
Humidity Range
0–100% RH
Humidity Accuracy
typ. ±2% RH at 25°C
Humidity Resolution
0,5% RH

Occupancy-Based HVAC Control

Combining occupancy information with temperature and humidity measurements allows the WS203 to be used as part of energy-efficient building automation.

The system can, for example, adjust heating, ventilation, or air conditioning operation depending on whether the room is currently occupied and the conditions within it.

Local Response Without Waiting for the Cloud

The WS203 supports Milesight D2D, enabling an event to be transmitted directly to a compatible Milesight device without using a LoRaWAN gateway or supervisory system.

Occupancy detection can therefore directly trigger local automation, such as lighting, a relay, or another control component.

1000 Records and Retransmission

1000 Records

The WS203 can locally store up to 1000 historical records.

Retransmission

Data stored during temporary loss of connectivity can be retransmitted after communication with the LoRaWAN network is restored.

Greater Data History Continuity

Local storage reduces the risk of gaps in environmental data during temporary network problems.

Communication, Power Supply and Design

Model
WS203-868M
Measured Parameters
motion / occupancy, temperature, humidity
Communication
LoRaWAN® + Milesight D2D
Frequency Band
EU868 / 868 MHz
Operating Mode
OTAA / ABP, Class A
Transmit Power
16 dBm for 868 MHz
Sensitivity
−137 dBm
Antenna
internal
Memory
up to 1000 records
Configuration
NFC / Milesight ToolBox and LoRaWAN downlink
Indicator
1 × status LED
Button
1 × internal Power / Reset
Power Supply
1 × ER18505 Li-SOCl₂, 4000 mAh
Declared Battery Life
approximately 10,7 years at SF7 / EU868*
Operating Temperature
−20…+60°C
Operating Humidity
0–95% RH, non-condensing
Protection Rating
IP30
Material
PC + ABS, flame-retardant UL94 V0
Colour
white + grey
Dimensions
73 × 73 × 26 mm without PIR cover
Weight
89,6 g with battery
Mounting
3M tape or screws
Certification
CE, FCC, RoHS

* For EU868, the manufacturer declares approximately 10,7 years of operation at SF7 and approximately 5,4 years at SF10. Test conditions: 30-minute reporting interval, 64 PIR triggers per day, LED disabled, and a temperature of 25°C. Actual battery life depends on configuration and communication conditions.

WS203 in a Smart Building System

Occupancy, temperature, and humidity information can be transmitted via LoRaWAN to a gateway and then to a central monitoring and building automation platform.

WS203
occupancy, temperature and humidity
→
LoRaWAN
wireless data transmission
→
LoRaWAN Gateway
data reception from sensors
→
ITS Platform
monitoring, analysis and automation
MODEL 3D

Motion, temperature and humidity sensor

Ładowanie modelu 3D

Nowości

  • Bestseller New Product
    obraz_2026-07-14_113033157.png GS601 (1).png
    Product code GS601-868M

    E-cigarette smoke sensor

    Manufacturer Milesight
    Gross price $270.60
    incl. %s VAT
    Net price $220.00
    without 23% VAT