{"product_id":"ecowitt-wh52-soil-moisture-temperature-ec-sensor","title":"Ecowitt WH52 Soil Moisture,Temperature \u0026 EC Sensor","description":"\u003cp\u003eMonitor what is happening in the soil around your plants; moisture, root-zone temperature and soil electrical conductivity, and view the readings through your Ecowitt WS3900 system.\u003c\/p\u003e\n\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eThe Ecowitt WH52 adds detailed soil monitoring to your \u003ca href=\"https:\/\/weatherstation.co.nz\/products\/ecowitt-ws3900-weather-station-with-w69-7-in-1-outdoor-sensor\" title=\"Ecowitt WS3900\" rel=\"noopener\" target=\"_blank\"\u003eEcowitt WS3900 weather station\u003c\/a\u003e\u003c\/strong\u003e, measuring three important conditions directly in the soil: \u003cstrong\u003emoisture, temperature and electrical conductivity (EC).\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRather than judging when soil is becoming dry simply from the surface, the Ecowitt WH52 lets you monitor conditions where the sensor is installed and follow how they change after watering, drying or fertilising.\u003c\/p\u003e\n\u003cp\u003eThe sensor sends its readings wirelessly to the Ecowitt WS3900 console, which then uploads the data for viewing in the Ecowitt app and ecowitt.net.\u003c\/p\u003e\n\u003ch3\u003eThree Soil Measurements in One Sensor\u003c\/h3\u003e\n\u003cp\u003eThe Ecowitt WH52 measures:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoil moisture\u003c\/strong\u003e — shows changes in the amount of water around the sensor, helping you follow drying and watering patterns.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoil temperature\u003c\/strong\u003e — measures the temperature within the soil around the roots, rather than the surrounding air, giving you a better indication of the conditions the roots are actually experiencing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical conductivity (EC)\u003c\/strong\u003e — measures the conductivity of soluble salts within the soil solution, providing useful information about changes associated with soil salinity and fertiliser concentration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEC does not tell you which individual nutrients are present. It is best interpreted together with soil moisture, because watering and drying can change the concentration of salts within the soil solution.\u003c\/p\u003e\n\u003ch3\u003eView Soil Conditions in the Ecowitt App\u003c\/h3\u003e\n\u003cp\u003eWhen used with the Ecowitt WS3900, the Ecowitt WH52 communicates directly with the console by wireless radio signal.\u003c\/p\u003e\n\u003cp\u003eThe WH52 readings are then available through the \u003cstrong\u003eEcowitt app and ecowitt.net\u003c\/strong\u003e, where you can see current conditions, historical records and graphs showing how the soil has changed over time.\u003c\/p\u003e\n\u003cp\u003eThis makes it much easier to see patterns — for example, how quickly the soil dries after watering or how soil temperature changes through the day or season.\u003c\/p\u003e\n\u003cp\u003eYou can also set alerts through Ecowitt for conditions you want to keep an eye on.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e WH52 soil readings are not displayed directly on the Ecowitt WS3900 console screen. They are viewed through the Ecowitt app or ecowitt.net.\u003c\/p\u003e\n\u003ch3\u003eMonitor More Than One Location\u003c\/h3\u003e\n\u003cp\u003eThe Ecowitt WS3900 can support multiple compatible soil-sensor channels, allowing additional Ecowitt WH52 sensors to be used if you want to monitor different areas separately.\u003c\/p\u003e\n\u003cp\u003eEach sensor has its own identification, and channels can be named within Ecowitt so you can distinguish between the locations you are monitoring.\u003c\/p\u003e\n\u003ch3\u003eDesigned for Outdoor Soil Monitoring\u003c\/h3\u003e\n\u003cp\u003eThe Ecowitt WH52 has an \u003cstrong\u003eIP66 weather-resistant housing\u003c\/strong\u003e and transmits readings approximately every 70 seconds.\u003c\/p\u003e\n\u003cp\u003eIt operates from a single AA battery with a transmission distance of up to \u003cstrong\u003e100 metres in open conditions\u003c\/strong\u003e between the sensor and compatible receiver.\u003c\/p\u003e\n\u003cp\u003eFor the New Zealand\/Oceania version, the Ecowitt WH52 operates on \u003cstrong\u003e433 MHz\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eThe probe should be inserted vertically into loosened soil to the marked installation depth.\u003c\/p\u003e\n\u003cp\u003eDo \u003cstrong\u003enot\u003c\/strong\u003e force the Ecowitt WH52 into hard or compacted ground, or soil containing stones, roots or other solid objects. Ecowitt recommends loosening the soil or making a pilot hole first, as excessive force or twisting can damage the probe.\u003c\/p\u003e\n\u003cp\u003eFor general home and hobbyist use, the factory calibration can be used while you become familiar with the soil-moisture trends. More advanced calibration options are available if required.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose the Ecowitt WH52?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree measurements from one sensor\u003c\/strong\u003e — monitor soil moisture, soil temperature and EC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSee what is happening below the surface\u003c\/strong\u003e — follow conditions within the soil rather than relying only on how it looks or feels at the top.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHistorical graphs and records\u003c\/strong\u003e — track changes in moisture, temperature and EC through Ecowitt.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWireless connection to your Ecowitt WS3900\u003c\/strong\u003e — no cable is required between the soil sensor and console.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpandable monitoring\u003c\/strong\u003e — add additional sensors if you want to compare more than one location.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutdoor-ready design\u003c\/strong\u003e — IP66-rated housing with approximately 12 months minimum specified battery life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan the Ecowitt WH52 operate on its own?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The Ecowitt WH52 is a wireless sensor and \u003cstrong\u003erequires the\u003c\/strong\u003e \u003cstrong\u003eEcowitt WS3900 weather station\u003c\/strong\u003e to receive its readings and upload them for viewing in the Ecowitt app or ecowitt.net. It does not have its own display or Wi-Fi connection.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/weatherstation.co.nz\/products\/ecowitt-ws3900-weather-station-with-w69-7-in-1-outdoor-sensor\" target=\"_blank\" rel=\"noopener\"\u003eLink to the Ecowitt WS3900 \u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the Ecowitt WH52 work with the Ecowitt WS3900?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The Ecowitt WH52 is compatible with the Ecowitt WS3900. The Ecowitt WS3900 should be running current compatible firmware.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the WH52 readings appear on the Ecowitt WS3900 display?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The Ecowitt WS3900 receives the WH52 readings and uploads them, but the soil moisture, temperature and EC readings are viewed through the Ecowitt app or ecowitt.net rather than on the WS3900 console screen.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does EC mean?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEC stands for \u003cstrong\u003eelectrical conductivity\u003c\/strong\u003e. It measures how readily electricity passes through the soil solution, which changes according to the concentration of dissolved salts.\u003c\/p\u003e\n\u003cp\u003eIt can therefore help you follow changes associated with fertiliser and soil salinity, but it does not identify individual nutrients and should be considered together with the soil-moisture reading.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use more than one Ecowitt WH52?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The Ecowitt WS3900 supports multiple soil-sensor channels, so separate Ecowitt WH52 sensors can be used to monitor different locations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the Ecowitt WH52 need Wi-Fi?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The Ecowitt WH52 itself communicates with the Ecowitt WS3900 using a wireless radio signal. Your Ecowitt WS3900 uses your home Wi-Fi and internet connection to upload the readings so you can view them through the Ecowitt app and ecowitt.net.\u003c\/p\u003e\n\u003ch5\u003eSpecifications:\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 class=\"PDq2pG_selectionAnchorContainer\"\u003eEcowitt WH52 Specifications\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\" style=\"text-align: left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth class=\"last:pe-10\" style=\"text-align: left;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEcowitt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWH52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3-in-1 soil moisture, temperature and electrical conductivity (EC) sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible weather station\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEcowitt WS3900\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIndependent operation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo — requires the Ecowitt WS3900 to receive and upload its readings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eData viewing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEcowitt app and ecowitt.net\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWS3900 console display\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWH52 readings are not displayed directly on the Ecowitt WS3900 console\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoil moisture range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–100%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoil moisture accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoil moisture resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoil temperature range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoil temperature accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoil temperature resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEC range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–10,000 μS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEC accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–1,000 μS\/cm: ±100 μS\/cm; above 1,000 μS\/cm: ±15%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEC resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 μS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement principle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFrequency Domain Reflectometry (FDR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReporting interval\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e70 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWireless frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e433 MHz — Oceania \/ New Zealand version\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransmission range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 100 m in open conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum sensor channels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 16 shared WH51 \/ WH51L \/ WH52 channels with compatible Ecowitt WS3900 firmware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeather resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP66\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to 60°C*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 × AA battery — not included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMinimum 12 months specified by Ecowitt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e148 × 86 × 25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHousing material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eABS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProbe material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFR-4 glass-fibre reinforced epoxy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e*NOTE soil moisture and EC readings below 0°C are not reliable for reference. \u003c\/p\u003e\n\u003ch5\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0474\/0890\/6404\/files\/Ecowitt_WH52UserManual.pdf?v=1789006385\" title=\"Ecowitt Wh52 manual\" rel=\"noopener\" target=\"_blank\"\u003eWH52 Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Ecowitt","offers":[{"title":"Default Title","offer_id":51474394251428,"sku":"WH52","price":89.99,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0474\/0890\/6404\/files\/1_fb1704be-f60b-447d-888e-5760184638da.jpg?v=1789005660","url":"https:\/\/weatherstation.co.nz\/products\/ecowitt-wh52-soil-moisture-temperature-ec-sensor","provider":"Weatherstations","version":"1.0","type":"link"}