{"id":28685,"date":"2025-08-29T09:45:49","date_gmt":"2025-08-29T07:45:49","guid":{"rendered":"https:\/\/monraspberry.com\/?post_type=product&p=28685"},"modified":"2026-10-26T05:09:27","modified_gmt":"2026-10-26T04:09:27","slug":"dragino-lwl02-detecteur-de-fuite-deau-lorawan","status":"publish","type":"product","link":"https:\/\/monraspberry.com\/en\/produit\/dragino-lwl02-detecteur-de-fuite-deau-lorawan\/","title":{"rendered":"Dragino LWL02 : d\u00e9tecteur de fuite d\u2019eau LoRaWAN"},"content":{"rendered":"

The Dragino LWL02<\/strong> is a compact, battery-powered water leak detector designed for preventive detection in home or industrial environments. Running on the LoRaWAN<\/strong>protocol, it provides long-range, low-power transmission, making it ideal for integration into a connected home automation system controlled by a Raspberry Pi<\/strong>.<\/p>\n

Fast and reliable detection<\/h3>\n

The sensor uses two metal probes connected to a main unit. When liquid comes into contact with these probes, a signal is sent immediately over the LoRaWAN network, triggering alerts or automated actions in a home automation system. Whether in a cellar, under a sink or next to a washing machine, the LWL02 provides constant monitoring to prevent water damage.<\/p>\n

Long-range autonomy<\/h3>\n

The detector runs on 2 AAA batteries<\/strong>, offering a battery life ranging from 2 to 10 years<\/strong>, depending on the frequency of transmissions and detected events. Its low-power design makes it ideal for continuous monitoring with no regular maintenance.<\/p>\n

LoRaWAN transmission<\/h3>\n

Compatible with most LoRaWAN gateways, the LWL02 can transmit its data over long distances with very low power consumption. It sends:<\/p>\n

    \n
  • Alerts when water is detected.<\/li>\n
  • Periodic status messages, including remaining battery life.<\/li>\n
  • Event counters, for long-term tracking.<\/li>\n<\/ul>\n

    Home automation integration with Raspberry Pi<\/h3>\n

    In home automation, the sensor really comes into its own when integrated into a connected ecosystem controlled by a Raspberry Pi<\/strong>. With a LoRaWAN gateway and software such as Home Assistant<\/strong> or Node-RED<\/strong>, you can:<\/p>\n

      \n
    • Receive alertes en temps r\u00e9el<\/strong> (smartphone notifications, emails, audible alarms).<\/li>\n
    • Automate scenarios: for example, shut off a water solenoid valve as soon as a leak is detected.<\/li>\n
    • Store the event history in a local database.<\/li>\n
    • Create a visual dashboard<\/strong> to track water consumption, detections and alerts.<\/li>\n<\/ul>\n

      Simple installation<\/h3>\n

      The compact unit (approx. 7 \u00d7 3 \u00d7 1.5 cm) is easy to mount near the area to be monitored. The probes can be placed on the floor, in a drip tray or directly under an at-risk appliance (water heater, dishwasher). Installation is discreet and requires no maintenance.<\/p>\n

      Safety and reliability<\/h3>\n

      Thanks to the combination of its long-range protocol and battery life, the LWL02 guarantees 24\/7 monitoring<\/strong> even in remote locations or areas without Wi-Fi. It is an essential tool for securing a smart home and protecting a basement, a second home or a technical room.<\/p>\n

      Typical applications<\/h3>\n
        \n
      • Connected home<\/strong> : integration with Home Assistant or Node-RED via Raspberry Pi.<\/li>\n
      • Monitoring sensitive areas<\/strong> : cellars, boiler rooms, server rooms.<\/li>\n
      • Industrial prevention<\/strong> : storage areas or workshops where a leak could damage equipment.<\/li>\n
      • Second homes<\/strong> : immediate alert in case of water ingress so you can act remotely.<\/li>\n<\/ul>\n

        Conclusion<\/h3>\n

        The Dragino LWL02<\/strong> is a modern, reliable water leak detector perfectly suited to home automation systems. Easy to install, battery-powered and designed for simple integration with Raspberry Pi via LoRaWAN, it is an ideal solution for effectively protecting your home or technical installations against water damage.<\/p>","protected":false},"excerpt":{"rendered":"

          \n
        • Water leak detector Standalone<\/strong> (2 AAA batteries, 2-10 years)<\/li>\n
        • Long-range transmission LoRaWAN<\/strong> for reliable alerts<\/li>\n
        • Ideal for Raspberry Pi home automation<\/strong> : alerts, automations, dashboards<\/li>\n<\/ul>","protected":false},"featured_media":28686,"template":"","meta":[],"product_brand":[442],"product_cat":[441],"product_tag":[],"class_list":["post-28685","product","type-product","status-publish","has-post-thumbnail","product_brand-dragino","product_cat-capteurs-detecteurs-maison-connectee-domotique-iot","first","instock","taxable","shipping-taxable","purchasable","product-type-simple","add-to-wishlist-after_add_to_cart"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/product\/28685","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":1,"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/product\/28685\/revisions"}],"predecessor-version":[{"id":33716,"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/product\/28685\/revisions\/33716"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/media\/28686"}],"wp:attachment":[{"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/media?parent=28685"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/product_brand?post=28685"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/product_cat?post=28685"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/monraspberry.com\/en\/wp-json\/wp\/v2\/product_tag?post=28685"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}