---
lang: "en"
title: "Mini Water Leak Detection Sensor"
sku: "WS303-868M"
canonical_url: "https://shop.marcomweb.it/en/lorawan/mini-water-leak-detection-sensor"
brand: "MARCOM S.r.l."
end_of_life: "false"
---

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WS303:Mini water leak detection sensor

WS303, the mini water leak detection sensor that detects the presence of leaks and triggers local and remote alarms. With low power consumption, it can operate for 5 years on a single battery. It is ideal for offices, buildings, smart homes, etc.
The WS303 sensor uses water conductivity to detect a minimum level of 0.5 mm by forming a circuit with two small metal probes. (Other conductive liquids are also supported).

## Technical Features

- LoRaWAN® Technology, Milesight D2D
- Frequency CN470/IN865/RU864/EU868/US915/AU915/KR920/AS923-1&2&3&4
- Tx Power 16dBm (868 MHz)/20dBm (915 MHz)/19dBm (470 MHz)
- Sensitivity -137dBm @300bps
- OTAA/ABP Class A Mode
- Power Supply 1 CR2450 590 mAh lithium battery
- Battery Life* 5 years (one hour leak per week, 25°C)
- Operating Temperature -10°C to +60°C
- Relative Humidity 0% to 100% (non-condensing)
- Ingress Protection IP67
- Dimensions 63 × 63 × 14 mm
- Material and Color ABS+PC, white
- Installation 3M adhesive tape mounting, tabletop

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Source: https://shop.marcomweb.it/en/lorawan/mini-water-leak-detection-sensor

MARCOM S.r.l. — a trusted supplier for industrial automation and building automation.