{"product_id":"grow-moisture-sensor-pack-of-3","title":"Grow Moisture Sensors (pack of 3)","description":"\u003cp\u003eA trio of Grow soil moisture sensors, for use with Grow HAT Mini or other devices.\u003c\/p\u003e\n\u003cp\u003eThese \u003cstrong\u003ecapacitive moisture sensors\u003c\/strong\u003e work using Pulse-Frequency Modulation (there's more info on that in our \u003ca href=\"https:\/\/learn.pimoroni.com\/tutorial\/hel\/assembling-grow\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eGrow tutorial\u003c\/a\u003e). They're a lot less vulnerable to corrosion over time than old school resistive sensors, as there are no exposed electrodes. There's a handy indicator line to show you how far they can be pushed into the soil, and they even have a little area so you can label them with plant names (we think 'Pete' is a great plant name).\u003c\/p\u003e\n\u003cp\u003eIt's possible to use Grow moisture sensors on their own with non-Raspberry Pi devices (like Arduino), as long as they're capable of monitoring pulses on an IO pin in the range of ~2Hz up to ~30Hz accurately.\u003c\/p\u003e\n\u003ch2\u003eMoisture sensor specifications:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCapacitive moisture sensors with \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pulse-frequency_modulation\" target=\"_blank\" rel=\"noopener noreferrer\" data-mce-href=\"https:\/\/en.wikipedia.org\/wiki\/Pulse-frequency_modulation\"\u003ePulse-Frequency Modulation\u003c\/a\u003e output.\u003c\/li\u003e\n\u003cli\u003eMale JST SH 3P connectors (if you need compatible cables, we sell them separately \u003ca title=\"Cables for Grow Moisture Sensors\" href=\"\/en-eu\/products\/grow-moisture-sensor-cables\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ehere\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/moisturesensorpinout.png?v=1600423302\" target=\"_blank\" rel=\"noopener noreferrer\" data-mce-href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/moisturesensorpinout.png?v=1600423302\"\u003ePinout\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eDimensions: 99mm x 10mm x 5mm (including connector)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pimoroni","offers":[{"title":"Default Title","offer_id":32271401123923,"sku":"PIM520","price":11.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/P1001158---Moisture-Sensors.jpg?v=1602682494","url":"https:\/\/shop.pimoroni.com\/en-eu\/products\/grow-moisture-sensor-pack-of-3","provider":"Pimoroni Ltd","version":"1.0","type":"link"}