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Milesight  |  SKU: WS303-868M
27% off

Milesight WS303 | Mini LoRaWAN Water Leakage Detection Sensor

€49,00 €67,00
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A compact and highly sensitive LoRaWAN leak sensor designed for rapid water detection and immediate local acoustic alerting.

  • • Fast Trigger: Alarms when liquid level reaches only 0.5mm.
  • • D2D Protocol: Direct device-to-device control without gateways.
  • • Ultra-Compact: Slim 63x63x14mm profile for discreet placement.

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Description

The Milesight WS303 is a "tiny but mighty" LoRaWAN Leak Detection Sensor engineered for high-density smart building and office deployments. Designed to detect the presence of conductive liquids as soon as levels reach 0.5mm, it provides an essential early-warning system to prevent costly water damage. The device features a built-in buzzer for real-time local alarms, ensuring on-site personnel are notified immediately while data is simultaneously sent to the cloud. With its IP67 waterproof rating and support for the Milesight D2D protocol, the WS303 can communicate directly with valves or sirens in under a second, offering a fail-safe local automation layer that operates independently of network connectivity.

Real-Time Protection & Low Latency

Milesight D2D Communication Enables the WS303 to act as a D2D controller, triggering Milesight agents like smart solenoids to shut off water lines instantly upon leak detection.
Rugged Miniaturized Design Housed in an IP67 enclosure that is UV-resistant and flame-retardant, making it durable enough for harsh industrial environments despite its small size.

Smart Infrastructure Scenarios

• Smart Offices: Place under sinks, water dispensers, or A/C units for discreet, wire-free leak monitoring.
• IT & Data Centers: Monitor server room floors for condensation or cooling system pipe failures.
• Hospitality: Protect hotel guest rooms and communal laundries with integrated local buzzer alerts.

What is in the Box?

• 1 x Milesight WS303 Mini Leak Sensor
• 1 x 590mAh CR2450 Lithium Battery
• 1 x 3M Double-Sided Adhesive Tape
• 1 x Quick Start Guide

Product Certifications

CE FCC IP67 RoHS

Specifications
  • Primary Communication Protocol
    LoRaWAN, Milesight D2D
  • Frequency/Region
    EU868
  • Antenna Type
    Internal
  • Configuration Method
    NFC
  • Activation Method
    OTAA, ABP
  • Environment Rating
    Indoor, Outdoor
  • IP Rating
    IP67
  • Operating Temperature
    -10°C to 60°C
  • Enclosure Material
    PC (Polycarbonate), ABS Plastic
  • Battery Type
    CR2450
  • Battery Capacity
    590mAh
  • Power Consumption
    Up to 5 Years (at 25°C)
  • Measurement Technology
    • Conductive Sensing: Utilizes high-sensitivity probes to detect the presence of conductive liquids (water, weak acids, etc.).
    • Milesight D2D: Supports Milesight D2D protocol as a controller, enabling direct, ultra-low latency (<1s) control of valves or sirens without a gateway.
    • Local & Remote Alarms: Features an integrated 70dB buzzer for onsite alerts and LoRaWAN connectivity for remote management.
    • Ultra-Compact Design: Tiny form factor (63 x 63 x 14 mm) allows for installation in tight spaces under appliances or floor tiles.
  • Measurement Range
    • Trigger Threshold: Detects liquid once it reaches a level of 0.5 mm.
    • Liquid Compatibility: Conductive liquids (not suitable for oils or hazardous chemicals).
    • Relative Humidity: 0% to 100% (non-condensing).
  • Measurement Accuracy
    • High Sensitivity: Optimized for rapid leak detection to trigger alarms at the earliest sign of water presence.
    • Industrial Reliability: IP67-rated waterproof housing ensures the device remains functional even after being submerged during a leak event.
  • Measurement Resolution
    • Detection Status: Binary reporting (Normal/Leakage).
    • Real-time Reporting: Immediate uplink transmission upon leak detection or dismissal.
  • Monitoring Parameters
    Water Leak (Spot)

Document Library

WS303 Datasheet

WS303 User Manual

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