{"product_id":"shelly-flood-s-gen4","title":"Shelly Flood S Gen4","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003e\u003cstrong\u003eShelly Flood S Gen4 Smart Water Leak Sensor | Matter \u0026amp; Zigbee\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCatch leaks early and protect your property with the Shelly Flood S Gen4 Smart Water Leak Sensor.\u003c\/strong\u003e This compact, battery-powered sensor uses large-surface stainless-steel detection pads to identify water quickly and reliably—even clean or low-conductivity water.\u003c\/p\u003e\n\u003cp\u003eIts low-profile, IP67-rated design makes it ideal for positioning under appliances, beneath sinks, near plumbing fixtures or inside drip pans. With Wi-Fi 6, Bluetooth 5 LE, Zigbee 3.0 and Matter-over-Wi-Fi connectivity, it can deliver alerts and trigger smart-home automations through Shelly Cloud, Home Assistant and other compatible platforms.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable leak detection:\u003c\/strong\u003e Large stainless-steel contact pads detect clean and low-conductivity water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlood and Rain modes:\u003c\/strong\u003e Choose the appropriate operating mode for indoor leak protection or outdoor rain-based automations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree alarm profiles:\u003c\/strong\u003e Select Intense, Normal or Economic mode to suit the location and level of protection required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in audible alarm:\u003c\/strong\u003e The integrated buzzer provides an immediate local warning when water is detected.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP67 protection:\u003c\/strong\u003e Designed for reliable operation in wet and demanding environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong battery life:\u003c\/strong\u003e Powered by one included CR2477 battery for convenient wireless operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple connectivity options:\u003c\/strong\u003e Supports Wi-Fi 6, Bluetooth 5 LE and Zigbee 3.0.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatter support:\u003c\/strong\u003e Matter-over-Wi-Fi provides streamlined integration with compatible smart-home ecosystems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocal automation actions:\u003c\/strong\u003e Create responsive automations without relying entirely on cloud services.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad platform compatibility:\u003c\/strong\u003e Integrates with Shelly Cloud, Home Assistant, Amazon Alexa, Google Home, Samsung SmartThings and other compatible platforms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFlood and Rain Detection Modes\u003c\/h2\u003e\n\u003ch3\u003eFlood Detection Mode\u003c\/h3\u003e\n\u003cp\u003eDetects a change in water status and immediately activates the selected alarm profile. This mode is recommended for kitchens, bathrooms, laundries, plant rooms, server rooms and other areas where a leak requires urgent attention.\u003c\/p\u003e\n\u003ch3\u003eRain Detection Mode\u003c\/h3\u003e\n\u003cp\u003eDetects the presence of water without activating the flood alarm. It is ideal for outdoor automations such as pausing irrigation, closing skylights or windows, and controlling motorised awnings.\u003c\/p\u003e\n\u003ch3\u003eSelectable Alarm Profiles\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntense:\u003c\/strong\u003e Frequent reporting and an extended audible alarm for high-value or critical areas, including server rooms and laboratories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNormal:\u003c\/strong\u003e The default profile for everyday residential and commercial leak protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEconomic:\u003c\/strong\u003e Disables the buzzer and conserves battery power, making it suitable for holiday homes, cabins and locations that may remain unattended.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePopular Applications\u003c\/h2\u003e\n\u003ch3\u003eImmediate Flood Detection\u003c\/h3\u003e\n\u003cp\u003eReceive rapid alerts in kitchens, bathrooms and laundry rooms, allowing you to respond before water damage spreads.\u003c\/p\u003e\n\u003ch3\u003eUnder-Appliance Protection\u003c\/h3\u003e\n\u003cp\u003eSlide the low-profile sensor underneath washing machines, dishwashers, refrigerators and other water-connected appliances.\u003c\/p\u003e\n\u003ch3\u003eUnder-Sink and Valve Monitoring\u003c\/h3\u003e\n\u003cp\u003ePosition it beneath P-traps, water filters, shut-off valves and flexible hoses to detect slow drips before they cause hidden damage.\u003c\/p\u003e\n\u003ch3\u003eToilet Leak Detection\u003c\/h3\u003e\n\u003cp\u003ePlace the sensor besides or behind a toilet to monitor supply lines, cisterns and base seals.\u003c\/p\u003e\n\u003ch3\u003eWater Heater and Boiler Pans\u003c\/h3\u003e\n\u003cp\u003eInstall it inside a drip pan to receive an alert if the pan begins to fill or overflow.\u003c\/p\u003e\n\u003ch3\u003eAutomatic Water Shutoff\u003c\/h3\u003e\n\u003cp\u003ePair the sensor with a compatible smart water valve and automation platform to shut off the water supply automatically when a leak is detected.\u003c\/p\u003e\n\u003ch3\u003eRain-Based Automations\u003c\/h3\u003e\n\u003cp\u003eUse Rain Detection Mode to trigger compatible outdoor automations, including irrigation control, motorised awnings and skylight or window closure.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAutomatic shutoff and other automation functions require separately sold compatible devices and appropriate platform configuration.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eSuitable For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHomes and apartments\u003c\/li\u003e\n\u003cli\u003eHotels, condominiums and multi-dwelling developments\u003c\/li\u003e\n\u003cli\u003eSmall offices, shops and restaurants\u003c\/li\u003e\n\u003cli\u003eGovernment and municipal facilities\u003c\/li\u003e\n\u003cli\u003eUniversities, colleges and laboratories\u003c\/li\u003e\n\u003cli\u003eFarms and agricultural facilities\u003c\/li\u003e\n\u003cli\u003eServer rooms and equipment areas\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSmart-Home Integrations\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmazon Alexa:\u003c\/strong\u003e Contact Sensor capability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGoogle Home:\u003c\/strong\u003e Sensor State capability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSamsung SmartThings:\u003c\/strong\u003e Battery and Water Sensor capabilities\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHome Assistant:\u003c\/strong\u003e Compatible integration options for monitoring and automation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShelly Cloud:\u003c\/strong\u003e Remote monitoring, alerts and automation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMQTT, UDP and Webhooks:\u003c\/strong\u003e Advanced local and third-party integration options\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eButton Controls\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePress once:\u003c\/strong\u003e Wakes the sensor for three minutes and initiates a status report.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePress twice rapidly:\u003c\/strong\u003e Returns the device to sleep.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePress three times rapidly:\u003c\/strong\u003e Activates Zigbee inclusion mode for three minutes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePress five times rapidly:\u003c\/strong\u003e Switches between the default Matter firmware and Zigbee mode.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHold for five seconds:\u003c\/strong\u003e Initiates a network reset.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHold for ten seconds:\u003c\/strong\u003e Restores factory settings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAudible and LED Indications\u003c\/h2\u003e\n\u003ch3\u003eBuzzer\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong repeating beep:\u003c\/strong\u003e Flood detected.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort repeating beep:\u003c\/strong\u003e Battery level below 20%.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eLED\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlue:\u003c\/strong\u003e Access Point mode enabled.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed:\u003c\/strong\u003e Wi-Fi station mode active but not connected.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYellow:\u003c\/strong\u003e Connected to Wi-Fi but not Shelly Cloud, or cloud access is disabled.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGreen:\u003c\/strong\u003e Connected to Wi-Fi and Shelly Cloud.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlashing purple:\u003c\/strong\u003e Zigbee commissioning mode.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlashing red and blue:\u003c\/strong\u003e Firmware update in progress.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlashing yellow:\u003c\/strong\u003e Device identification mode.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eDimensions\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e23 × 77 mm (H × diameter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eWeight\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e50 g without battery; 70 g with battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eMounting\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eFlat surface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eProtection rating\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eOperating temperature\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-20°C to 40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eOperating humidity\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e30% to 100% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eMaximum altitude\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e2000 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eBattery\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e1 × CR123A, included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eEstimated battery life\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003ePowered by an included battery for reliable, low-maintenance wireless operation.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eWater detection\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eWi-Fi\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e802.11 b\/g\/n\/ax, 2.4 GHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eBluetooth\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBluetooth 5 LE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eZigbee\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eZigbee 3.0 \/ IEEE 802.15.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eMatter\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eMatter-over-Wi-Fi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eProcessor\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eESP-Shelly-C68F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eFlash memory\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e8 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eWebhooks\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e10 webhooks with two URLs per hook\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eMQTT \/ UDP \/ KVS\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eSchedules \/ scripting\u003c\/th\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhy doesn’t the sensor detect water instantly?\u003c\/h3\u003e\n\u003cp\u003eTo extend battery life, the Shelly Flood S Gen4 checks for a change in flood status every five seconds. This brief delay balances responsive detection with efficient battery operation.\u003c\/p\u003e\n\u003ch3\u003eHow can false alarms be reduced in humid environments?\u003c\/h3\u003e\n\u003cp\u003eIncrease the \u003cstrong\u003eState Hold Time\u003c\/strong\u003e setting. It is set to zero by default and can be adjusted up to 60 seconds. The flood state will then change only when the same condition remains present for the selected period.\u003c\/p\u003e\n\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 × Shelly Flood S Gen4\u003c\/li\u003e\n\u003cli\u003e1 × CR123A battery\u003c\/li\u003e\n\u003cli\u003eUser documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Shelly","offers":[{"title":"Default Title","offer_id":47458151628971,"sku":"SH-SHELLYFLOODG4-S","price":39.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2308\/2087\/files\/ShellyFloodSGen41.png?v=1784788293","url":"https:\/\/www.ozsmartthings.com.au\/products\/shelly-flood-s-gen4","provider":"Oz Smart Things Pty Ltd","version":"1.0","type":"link"}