XH-M214 Digital soil moisture sensor controller for automatic watering system. High quality 12V relay on board to control watering system on/off by function of watering value start/stop adjustment. The 72x20 mm soil moisture sensor detects soil moisture indicators on the 2-digit LED, to easily record the current soil moisture. 20-99%RH humidity range and 1%RH accuracy, 10A control current for your choice, wide use for farm/house/digital irrigation factory. Size and connection instructions are shown in product images; If you have any questions, please feel free to contact us by email. Note: The data is all manual measurement, please allow 1 - 3cm error, due to the difference in light and display, there will be a certain color difference, depending on the physical object received Delivery Quantity: (according to the main image)