The Milesight WS203 is a compact, wireless environmental sensor that combines 🕵️♂️ motion detection, 🌡️ temperature, and 💧 humidity monitoring into a single LoRaWAN®-enabled device. It is ideal for smart buildings, offices, hospitals, and agricultural facilities, helping to optimize comfort and energy usage by detecting occupancy and environmental conditions.
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Key Features
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Utilizes passive infrared (PIR) technology 🧠 to detect motion within a 120° horizontal and 100° vertical range, up to 6 meters distance.
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Measures environmental conditions in real-time using high-precision sensors 🌡️💧 (±0.2°C temperature, ±2% RH humidity).
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Stores up to 1,000 historical records and supports retransmission 📦 to avoid data loss in case of connection issues.
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Supports Milesight D2D direct device-to-device communication ⚡ for ultra-low latency response without the need for a gateway.
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Configurable via NFC 📲 for one-touch setup and supports card emulation.
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Powered by a long-life 4000 mAh battery 🔋 with up to 5 years of operation.
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Technical Specifications
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Wireless: LoRaWAN® (Class A), Milesight D2D
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Frequency: EU868 MHz
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Tx Power: 16 dBm
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Sensitivity: -137 dBm
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Detection Distance: Up to 6 meters
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Temperature Range: -20°C to +60°C
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Humidity Range: 0% to 100% RH
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Power Supply: 1 × ER18505 4000 mAh Li-SOCl₂ Battery 🔋
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Battery Life: Up to 5 years (based on 30-minute interval and 64 triggers/day at 25°C)
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Material: Flame-retardant PC + ABS (white/grey)
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Dimensions: 73 × 73 × 26 mm
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Protection: IP30
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Installation: 3M adhesive or wall mounting kit
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Package Includes
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1 × Milesight WS203 Sensor
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4 × PIR Lens Covers
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1 × 3M Mounting Tape
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2 × Mounting Screws
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1 × Quick Start Guide
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1 × Warranty Card
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Product Downloads
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🎥 Product Video
- Device Type: LoRaWAN® PIR, Temperature & Humidity Sensor
- Measurement Parameters: Motion Detection (PIR), Temperatute, Humidity
- Motion Detection Range: Up to 8 meters, 120° detection angle
- LoRaWAN® Protocol: 1.0.3, Class A
- Frequency Band: EU868 MHz
- LoRa® TX Power: Up to 16 dBm (Adjustable)
- LoRa® Sensitivity: -137 dBm
- Power Supply: 1 × 4000 mAh ER18505 Li-SOCl2 Battery (up to 5 years lifespan)
- Ingress Protection: IP30 (Indoor use)
- Operating Temperature: -20°C to 60°C
- Installation: Wall-mounted or ceiling-mounted