{"product_id":"xh-m214-soil-humidity-controller-auto-irrigation-sensor-module","title":"XH-M214 Soil Humidity Controller – Auto Irrigation Module","description":"\u003ch2\u003eXH-M214 Soil Humidity Controller with Sensor Module\u003c\/h2\u003e\n\u003cp\u003eTake the guesswork out of watering your plants with the \u003cstrong\u003eXH-M214 Soil Humidity Controller\u003c\/strong\u003e. This compact, easy-to-use DIY module automatically triggers irrigation when soil moisture drops below your chosen threshold — keeping your garden, greenhouse, or potted plants perfectly hydrated without constant monitoring.\u003c\/p\u003e\n\n\u003cp\u003eFeaturing a bright \u003cstrong\u003ered digital display\u003c\/strong\u003e, the controller lets you set your desired humidity range at a glance. Simply connect the included soil sensor probe, set your target moisture level between 20–99% RH, and let the module handle the rest. When the sensor detects dry soil, the relay activates your pump or valve automatically.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Humidity Range:\u003c\/strong\u003e 20–99% RH — suitable for a wide variety of plants and growing conditions\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRed LED Digital Display:\u003c\/strong\u003e Clear, easy-to-read readout for quick monitoring\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAutomatic Control:\u003c\/strong\u003e Relay output triggers irrigation devices automatically based on soil moisture level\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Operating Temperature:\u003c\/strong\u003e Rated for -40°C to +85°C — reliable in both indoor and outdoor environments\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e12V DC Power Supply:\u003c\/strong\u003e Compatible with standard low-voltage setups\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDIY Kit Package:\u003c\/strong\u003e Ideal for electronics hobbyists, gardeners, and makers looking to build a custom auto-watering system\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Modular Design:\u003c\/strong\u003e Easy to integrate into existing irrigation setups or DIY projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eXH-M214\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHumidity Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20–99% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 12V\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 +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRed LED Digital\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDIY Kit (1 x Controller + Soil Sensor Probe)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHome gardens and potted plant care\u003c\/li\u003e\n  \u003cli\u003eGreenhouse and grow-tent automation\u003c\/li\u003e\n  \u003cli\u003eDIY smart irrigation projects\u003c\/li\u003e\n  \u003cli\u003eArduino\/Raspberry Pi integration\u003c\/li\u003e\n  \u003cli\u003eSmall-scale agricultural monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/100-pcs-plant-support-clips-orchid-flower-vine-stem-garden\"\u003e100 PCS Plant Support Clips for Orchid, Flower \u0026amp; Vine Stems\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/garden-pruner-shears-secateurs-bonsai-fruit-trees\"\u003eGarden Pruner Shears – Secateurs for Bonsai \u0026amp; Fruit Trees\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What does the XH-M214 soil humidity controller do?\u003c\/h4\u003e\n\u003cp\u003eA: The XH-M214 is an automatic soil moisture controller that uses a soil sensor probe to measure the humidity level in the ground. When the moisture drops below your set threshold (anywhere from 20–99% RH), it activates a relay to turn on an irrigation pump or valve, then shuts it off once the target level is reached. It's ideal for building an automated watering system for gardens, greenhouses, or indoor plants.\u003c\/p\u003e\n\u003ch4\u003eQ: What power supply does the XH-M214 require?\u003c\/h4\u003e\n\u003cp\u003eA: The XH-M214 humidity controller runs on a DC 12V power supply, making it compatible with standard low-voltage power adapters and DIY electronics setups. It is not included in the kit, so you will need a 12V DC adapter rated appropriately for your relay load.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this module suitable for outdoor use?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The XH-M214 is rated for an operating temperature range of -40°C to +85°C, making it capable of withstanding both cold and warm outdoor environments. For best longevity, it is recommended to protect the control board from direct rain or water exposure by housing it in a weatherproof enclosure.\u003c\/p\u003e\n\u003ch4\u003eQ: How do I set the humidity threshold on this controller?\u003c\/h4\u003e\n\u003cp\u003eA: The controller features a simple push-button interface alongside the red LED digital display. You can scroll through and set your desired upper and lower humidity thresholds directly on the unit. When soil moisture falls outside the set range, the relay automatically activates the connected irrigation device.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does the XH-M214 soil humidity controller do?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The XH-M214 is an automatic soil moisture controller that uses a soil sensor probe to measure the humidity level in the ground. 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