{"title":"Best Sellers","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eOur top-rated pH meters offer precise and reliable measurements for a wide range of applications. Whether you're testing water quality, soil acidity, or hydroponic solutions, our pH meters deliver accurate results every time. With features like automatic temperature compensation, multiple calibration points, and durable construction, our pH meters are the perfect choice for both professionals and home users.\u003c\/p\u003e","products":[{"product_id":"6-in-1-ph-soil-tester","title":"6 in 1 pH Soil Tester with EC and Calibration | Yieryi","description":"\u003cstyle\u003e\n.yieryi-desc table{border-collapse:collapse;width:100%;margin:1em 0}\n.yieryi-desc th,.yieryi-desc td{border:1px solid #ddd;padding:8px;text-align:left;vertical-align:top}\n.yieryi-desc th{background:#f6f6f6}\n.yieryi-desc h2{margin-top:1.4em}\n\u003c\/style\u003e\n\u003cdiv class=\"yieryi-desc\"\u003e\n\u003cp\u003eThis 6-in-1 soil tester reads soil pH, EC, moisture, fertility, light, and temperature on one backlit screen, so you get a rounded read on your soil from a single probe. Push it into moist soil and the display shows pH, EC in mS, temperature, and fertility at once, with light and moisture indicators.\u003c\/p\u003e\n\u003cp\u003eWhat sets this one apart from most 6-in-1 meters is a calibration button. The pH, EC, moisture, and temperature are measured directly, and because you can calibrate the pH against a known reference, its pH read is more trustworthy than fixed, factory-only meters. The fertility figure is a \u003cstrong\u003edirectional gauge\u003c\/strong\u003e based on conductivity—useful for spotting thin or salty soil, not an exact nutrient number.\u003c\/p\u003e\n\u003ch2\u003eHow to read it\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003epH\u003c\/strong\u003e — aim for 6.0 to 7.0 for most plants; calibrate first for the most reliable read. See our full range of \u003ca href=\"\/collections\/soil-ph-testing\"\u003esoil pH meters\u003c\/a\u003e.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEC\u003c\/strong\u003e — shown in mS; rising EC means salt is building up. For a dedicated, precise EC read, use our \u003ca href=\"\/products\/soil-ec-meter-conductivity-tester\"\u003esoil EC meter\u003c\/a\u003e.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMoisture\u003c\/strong\u003e — water when dry, hold off when wet.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFertility and light\u003c\/strong\u003e — a directional fertility gauge, plus a light check for the spot.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWant actual N, P, K trends instead of overall fertility? See our \u003ca href=\"\/products\/npk-soil-tester\"\u003eNPK soil tester\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eWhy Yieryi\u003c\/h2\u003e\n\u003cp\u003eYieryi has built pH, EC, and TDS meters for more than ten years. A 6-in-1 trades a little precision for convenience; the calibration button narrows that gap on pH, and we are honest about which readings are measured and which are a directional guide.\u003c\/p\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan I calibrate it?\u003c\/strong\u003e\u003cbr\u003eYes—it has a CAL button, so you can calibrate the pH against a known reference for a more reliable read. It comes factory-calibrated, so recalibration is optional and only needed for extra precision.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the fertility reading show NPK?\u003c\/strong\u003e\u003cbr\u003eNo—it shows overall fertility as a conductivity-based direction, not individual N, P, or K.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it need an app or batteries?\u003c\/strong\u003e\u003cbr\u003eNo app—it reads on its own LCD. It runs on AAA batteries.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Yieryi Meter","offers":[{"title":"Default Title","offer_id":51164091580584,"sku":"YY-1088","price":56.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/1988\/7016\/files\/YY-1088-2.jpg?v=1740667764"},{"product_id":"npk-soil-tester","title":"NPK Soil Tester Meter for Plants | Yieryi","description":"\u003cstyle\u003e\n.yieryi-desc table{border-collapse:collapse;width:100%;margin:1em 0}\n.yieryi-desc th,.yieryi-desc td{border:1px solid #ddd;padding:8px;text-align:left;vertical-align:top}\n.yieryi-desc th{background:#f6f6f6}\n.yieryi-desc h2{margin-top:1.4em}\n\u003c\/style\u003e\n\u003cdiv class=\"yieryi-desc\"\u003e\n\u003cp\u003eAn NPK soil tester reads the three nutrients plants need most—nitrogen (N), phosphorus (P), and potassium (K)—plus soil temperature. This one gives you those readings in seconds from a dual-needle probe, so you can tell whether it is time to feed or hold off, without mailing a sample to a lab.\u003c\/p\u003e\n\u003cp\u003eRead it as a trend tool. The N, P, and K figures are a \u003cstrong\u003edirectional reference\u003c\/strong\u003e, not a lab measurement—useful for spotting when a nutrient runs low and tracking how your soil changes after you feed. For exact numbers you would send a sample to a lab; for \"is my soil getting hungry,\" this is faster and repeatable.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eNot sure how to read the three figures? Our guide to \u003ca href=\"https:\/\/www.yieryi.com\/blogs\/news\/what-do-npk-numbers-mean\" target=\"_blank\" title=\"what the NPK numbers mean\" rel=\"noopener\"\u003ewhat the NPK numbers mean\u003c\/a\u003e breaks them down.\u003c\/p\u003e\n\u003ch2\u003eWhat N, P, and K do\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNitrogen (N)\u003c\/strong\u003e drives green, leafy growth. Low N often shows as pale or yellowing older leaves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhosphorus (P)\u003c\/strong\u003e supports roots, flowers, and fruit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePotassium (K)\u003c\/strong\u003e builds hardiness—stems, disease resistance, and fruit quality.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt comes with a reference chart for typical NPK levels, so a reading becomes a decision. It also reads soil temperature.\u003c\/p\u003e\n\u003ch2\u003eWant pH and moisture too?\u003c\/h2\u003e\n\u003cp\u003eThis tool focuses on nutrients. For pH, moisture, and EC in one probe, see our \u003ca href=\"\/products\/8-in-1-npk-soil-sensor-probe-multi-parameter-tester-analyzer\"\u003e8 in 1 soil sensor probe\u003c\/a\u003e (its NPK is estimated the same way). To read salt and nutrient concentration directly, pair it with a \u003ca href=\"\/products\/soil-ec-meter-conductivity-tester\"\u003esoil EC meter\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eWhy Yieryi\u003c\/h2\u003e\n\u003cp\u003eYieryi comes out of a measurement-instrument factory with more than ten years building pH, EC, and TDS meters. We will tell you straight: a handheld NPK tester is for trends and timing, not lab-grade numbers.\u003c\/p\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs the NPK reading lab-accurate?\u003c\/strong\u003e\u003cbr\u003eNo—it is a directional reading for tracking trends and timing feeding, not exact lab figures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does it measure?\u003c\/strong\u003e\u003cbr\u003eNitrogen, phosphorus, potassium, and soil temperature, on a backlit LCD, with a reference chart.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it need an app or batteries?\u003c\/strong\u003e\u003cbr\u003eNo app—it is standalone, runs on 3 AAA batteries, and shuts off automatically.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Yieryi Meter","offers":[{"title":"Default Title","offer_id":54831185035432,"sku":"YG-09","price":70.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/1988\/7016\/files\/YG-09_b02ee714-a72f-4ddd-9726-04c81538b80a.jpg?v=1740667707"},{"product_id":"digital-3-in-1-soil-npk-tester-quick-accurate-nutrient-analysis","title":"Digital 3 in 1 Soil NPK Tester","description":"\u003cp\u003eThis is the large-display model in our soil nutrient range, showing nitrogen, phosphorus, potassium and soil temperature on one screen.\u003c\/p\u003e\n\n\u003cp\u003eIt suits growers who feed on a schedule and want to track how the reading changes after feeding. Take a reading before feeding and compare it with a later reading taken under similar soil conditions — the movement between the two is the useful part.\u003c\/p\u003e\n\n\u003cp\u003eThe nitrogen, phosphorus and potassium figures are calculated from soil conductivity rather than measured chemically, so read them as low, medium or high. If you need exact nutrient values for a fertiliser plan, use a laboratory soil test. Readings also shift with soil moisture, probe contact and temperature, so test under similar conditions each time if you want the numbers to be comparable.\u003c\/p\u003e\n\n\u003cp\u003eFor a smaller NPK tester, see our \u003ca href=\"https:\/\/www.yieryi.com\/products\/npk-soil-tester\"\u003eNPK soil tester\u003c\/a\u003e.\u003c\/p\u003e","brand":"Yieryi Meter","offers":[{"title":"Default Title","offer_id":51683882238120,"sku":"YG-NPK","price":279.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/1988\/7016\/files\/YG-NPK_1172g_34.5X16X9CM_1e593c1c-251c-4881-adcd-0450d4278be8.jpg?v=1741080241"},{"product_id":"3-in-1-digital-soil-tester-npk-temperature-meter","title":"3-in-1 Digital Soil Tester – Soil NPK Meter","description":"\u003cp data-start=\"176\" data-end=\"439\"\u003eGet quick and accurate \u003cstrong data-start=\"199\" data-end=\"250\"\u003eNitrogen (N), Phosphorus (P), and Potassium (K)\u003c\/strong\u003e readings with this \u003cstrong data-start=\"270\" data-end=\"300\"\u003e3-in-1 Digital Soil Tester\u003c\/strong\u003e. Designed for \u003cstrong data-start=\"315\" data-end=\"361\"\u003egardeners, farmers, and greenhouse growers\u003c\/strong\u003e, it helps you monitor soil fertility for healthier, more productive plants.\u003c\/p\u003e\n\u003ch4 data-start=\"441\" data-end=\"465\"\u003e\u003cstrong data-start=\"446\" data-end=\"463\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-start=\"466\" data-end=\"869\"\u003e✔ \u003cstrong data-start=\"468\" data-end=\"509\"\u003eInstant NPK Measurement\u003c\/strong\u003e – Ensures precise soil analysis.\u003cbr data-start=\"542\" data-end=\"545\"\u003e✔ \u003cstrong data-start=\"547\" data-end=\"575\"\u003eEasy-to-Read LCD Display\u003c\/strong\u003e – Clear digital readings for quick decision-making.\u003cbr data-start=\"627\" data-end=\"630\"\u003e✔ \u003cstrong data-start=\"632\" data-end=\"649\"\u003eVersatile Use\u003c\/strong\u003e – Perfect for \u003cstrong data-start=\"664\" data-end=\"710\"\u003egardens, farms, nurseries, and greenhouses\u003c\/strong\u003e.\u003cbr data-start=\"711\" data-end=\"714\"\u003e✔ \u003cstrong data-start=\"716\" data-end=\"733\"\u003eUser-Friendly\u003c\/strong\u003e – Simple operation with \u003cstrong data-start=\"758\" data-end=\"775\" data-is-only-node=\"\"\u003eauto shut-off\u003c\/strong\u003e for battery saving.\u003cbr data-start=\"795\" data-end=\"798\"\u003e✔ \u003cstrong data-start=\"800\" data-end=\"822\"\u003eDurable \u0026amp; Portable\u003c\/strong\u003e – Compact design for on-the-go soil testing.\u003c\/p\u003e\n\u003cp data-start=\"871\" data-end=\"953\"\u003e\u003cstrong data-start=\"871\" data-end=\"951\"\u003eTake control of your soil’s nutrient levels and maximize plant health today!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Yieryi Meter","offers":[{"title":"Default Title","offer_id":51684855513256,"sku":"YG-NPK-B","price":256.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/1988\/7016\/files\/1_e6469229-6d89-465e-af47-795c9400b891.jpg?v=1741087410"},{"product_id":"drip-irrigation-kit-automatic-garden-watering-system","title":"Drip Irrigation Kit for Gardens","description":"\u003cp\u003eSprinklers distribute water over a wide area, including foliage and paths. Drip irrigation delivers it closer to the root zone.\u003c\/p\u003e\n\n\u003cp\u003eThat can reduce water lost outside the root zone and keep foliage drier than overhead watering, which can favour some leaf diseases.\u003c\/p\u003e\n\n\u003cp\u003eThe system uses tubing and emitters to run lines through beds, containers or a greenhouse.\u003c\/p\u003e","brand":"Yieryi Meter","offers":[{"title":"Default Title","offer_id":52628645839016,"sku":"YG-Z001","price":29.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/1988\/7016\/files\/DripIrrigationKit.jpg?v=1747819399"},{"product_id":"8-in-1-npk-soil-sensor-probe-multi-parameter-tester-analyzer","title":"8 in 1 NPK Soil Sensor Probe | Yieryi","description":"\u003cdiv class=\"yieryi-spec\"\u003e\n\u003ctable\u003e\u003ctbody\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMeasures\u003c\/td\u003e\n\u003ctd\u003eTemperature, moisture, pH, EC, salinity, N, P, K (8 parameters)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eSoil temperature range\u003c\/td\u003e\n\u003ctd\u003e−40°C to 80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMoisture range\u003c\/td\u003e\n\u003ctd\u003e0–100%\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003epH range\u003c\/td\u003e\n\u003ctd\u003e3–10 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eEC range\u003c\/td\u003e\n\u003ctd\u003e0–20000 µS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eSalinity range\u003c\/td\u003e\n\u003ctd\u003e0–20000 mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eN \/ P \/ K range\u003c\/td\u003e\n\u003ctd\u003e0–1999 mg\/kg each, estimated from conductivity (directional)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eUSB to Android \/ HarmonyOS phone, app monitoring\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eAccuracy (pH \/ EC)\u003c\/td\u003e\n\u003ctd\u003epH ±0.2; EC ±3%\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWater resistance\u003c\/td\u003e\n\u003ctd\u003eIP68, safe for continuous soil insertion\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003eDC 5V via USB (phone or USB power source), max 0.5W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Yieryi Meter","offers":[{"title":"Default Title","offer_id":53663772082344,"sku":"THE01888S","price":85.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/1988\/7016\/files\/1_11bc4e9f-d095-4f21-a831-c6b5f85f5074.jpg?v=1778061915"},{"product_id":"5-in-1-hydroponics-water-quality-tester-ph-ec-tds-salinity-temp","title":"5 in 1 Hydroponic pH EC TDS Tester","description":"\u003cp\u003epH, EC, TDS, salinity and temperature cover the core readings commonly monitored in a home hydroponic reservoir, in one pen instead of a pH meter and a TDS meter side by side.\u003c\/p\u003e\n\n\u003cp\u003eFor the 7 in 1 model, see our \u003ca href=\"https:\/\/www.yieryi.com\/products\/7-in-1-hydroponic-water-quality-meter-ph-ec-tds-salt-temperature-tester\"\u003e7 in 1 hydroponic meter\u003c\/a\u003e.\u003c\/p\u003e","brand":"Yieryi Meter","offers":[{"title":"Default Title","offer_id":53697629126824,"sku":"YY-1090","price":52.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/1988\/7016\/files\/3_ec12f646-531c-4630-b321-d19a8bafe330.jpg?v=1757066300"},{"product_id":"7-in-1-hydroponic-water-quality-meter-ph-ec-tds-salt-temperature-tester","title":"7 in 1 Hydroponic pH EC TDS Meter","description":"\u003cp\u003epH and EC are two of the main readings used to manage a hydroponic nutrient solution.\u003c\/p\u003e\n\n\u003cp\u003eEC indicates the overall concentration of dissolved ions in the solution. It does not identify individual nutrients. pH affects how available those nutrients are to the roots. Reading them together helps you investigate whether an issue may relate to solution concentration, pH or both, although plant symptoms can also have other causes.\u003c\/p\u003e\n\n\u003cp\u003eFor a 5 in 1 option, see our \u003ca href=\"https:\/\/www.yieryi.com\/products\/5-in-1-hydroponics-water-quality-tester-ph-ec-tds-salinity-temp\"\u003e5 in 1 hydroponic tester\u003c\/a\u003e.\u003c\/p\u003e","brand":"Yieryi Meter","offers":[{"title":"Default Title","offer_id":54478952267944,"sku":"YY-1101","price":51.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/1988\/7016\/files\/1_3838c97b-57c1-42d1-b36d-9ec28f2ed222.jpg?v=1763029051"},{"product_id":"4-zone-solar-wifi-smart-water-timer","title":"Solar Powered 4 Zone WiFi Water Timer","description":"\u003cp\u003eA four zone garden water timer with WiFi control.\u003c\/p\u003e\n\n\u003cp\u003eThe reason to have separate zones is that a lawn, a raised bed and a row of containers dry out at different rates, and a single run time may overwater one area while leaving another too dry.\u003c\/p\u003e\n\n\u003cp\u003eThe unit uses solar charging as part of its power system.\u003c\/p\u003e","brand":"Yieryi Meter","offers":[{"title":"US","offer_id":55211140579496,"sku":"YG-344-US","price":118.0,"currency_code":"USD","in_stock":true},{"title":"UK","offer_id":55211140612264,"sku":"YG-344","price":118.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/1988\/7016\/files\/1_873c044d-2574-4881-9016-caf090b2ee34.jpg?v=1769230634"},{"product_id":"8-in-1-soil-tester-for-plants-with-ph-moisture-and-npk-monitoring","title":"8 in 1 Soil Tester for Plants with NPK | Yieryi","description":"\u003cstyle\u003e\n.yieryi-desc table{border-collapse:collapse;width:100%;margin:1em 0}\n.yieryi-desc th,.yieryi-desc td{border:1px solid #ddd;padding:8px;text-align:left;vertical-align:top}\n.yieryi-desc th{background:#f6f6f6}\n.yieryi-desc h2{margin-top:1.4em}\n\u003c\/style\u003e\n\u003cdiv class=\"yieryi-desc\"\u003e\n\u003cp\u003eThis 8-in-1 soil tester for plants reads pH, moisture, EC, temperature, light, and an NPK estimate, and sends the data to your phone. Unlike USB-only probes, it works with both iPhone and Android, so most gardeners can use it out of the box.\u003c\/p\u003e\n\u003cp\u003eRead it as a screening tool. The pH, moisture, and EC are measured directly, while the \u003cstrong\u003eNPK figures are estimated from conductivity\u003c\/strong\u003e—a useful direction for spotting when a nutrient runs low, not a lab-exact number. We would rather tell you that than let you trust a figure too far.\u003c\/p\u003e\n\u003ch2\u003eHow to use the readings\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003epH\u003c\/strong\u003e — target 6.0 to 7.0 for most plants; see our \u003ca href=\"\/collections\/soil-ph-testing\"\u003esoil pH meters\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture\u003c\/strong\u003e — water when dry, hold off when wet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEC\u003c\/strong\u003e — rising EC means salt is building up; for a precise EC reading use a dedicated \u003ca href=\"\/products\/soil-ec-meter-conductivity-tester\"\u003esoil EC meter\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNPK\u003c\/strong\u003e — read as low, medium, or high trends. If you only need nutrients, our \u003ca href=\"\/products\/npk-soil-tester\"\u003eNPK soil tester\u003c\/a\u003e focuses on that.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Yieryi\u003c\/h2\u003e\n\u003cp\u003eYieryi builds pH, EC, and TDS meters, and has for over ten years. That background is why we are clear about which readings are measured and which are estimated, so you know how far to trust each one.\u003c\/p\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it work with an iPhone?\u003c\/strong\u003e\u003cbr\u003eYes. It connects to iPhone over Bluetooth (the sensor still needs USB power during use) and to Android by direct USB connection. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the NPK reading lab-accurate?\u003c\/strong\u003e\u003cbr\u003eNo—it is estimated from conductivity, meant for tracking trends, not exact nutrient values.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it need batteries?\u003c\/strong\u003e\u003cbr\u003eNo—it's powered directly through USB, from your phone or a compatible USB power source.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Yieryi Meter","offers":[{"title":"Default Title","offer_id":55504073228456,"sku":"THE01999P","price":93.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/1988\/7016\/files\/NPKsoiltester.jpg?v=1778146309"},{"product_id":"3-zone-smart-wifi-water-timer-rf-gateway","title":"3 Zone Smart WiFi Water Timer with App Control and RF Gateway","description":"\u003ch2 data-section-id=\"1omn1j9\" data-start=\"541\" data-end=\"570\"\u003eSmart Irrigation Made Easy\u003c\/h2\u003e\n\u003cp data-start=\"572\" data-end=\"874\"\u003eTake full control of your garden watering schedule with the \u003cstrong data-start=\"632\" data-end=\"665\"\u003e3 Zone Smart WiFi Water Timer\u003c\/strong\u003e. Designed for lawns, gardens, greenhouses, flower beds, and drip irrigation systems, this intelligent irrigation controller allows you to manage three independent watering zones directly from your smartphone.\u003c\/p\u003e\n\u003cp data-start=\"876\" data-end=\"1103\"\u003eUsing advanced \u003cstrong data-start=\"891\" data-end=\"918\"\u003e433MHz RF communication\u003c\/strong\u003e and a dedicated \u003cstrong data-start=\"935\" data-end=\"951\"\u003eWiFi Gateway\u003c\/strong\u003e, the system provides reliable long-range connectivity up to 300 meters in open areas, ensuring stable control even in large gardens and outdoor spaces.\u003c\/p\u003e","brand":"Yieryi Meter","offers":[{"title":"Default Title","offer_id":55586515779752,"sku":"YG-658","price":105.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/1988\/7016\/files\/36911c0904db1d481a24384dac5a57ea_b2a4a052-8fcc-4b33-a237-4b2830a71f0f.jpg?v=1780560994"},{"product_id":"yieryi-9-in-1-digital-soil-tester-with-npk-ph-ec-moisture","title":"9 in 1 Digital Soil Tester","description":"\u003cp\u003eThis 9-in-1 digital soil tester measures nitrogen, phosphorus, potassium, pH, EC, moisture, temperature, salinity and fertility in one device. It is designed for routine soil monitoring in gardens, greenhouses, lawns, orchards and potted plants.\u003c\/p\u003e\n\u003cp\u003eCompare multiple soil readings together to better understand watering, fertilizing and general soil conditions. \u003cmeta charset=\"utf-8\"\u003eIf pH is your main concern, compare our full range of \u003ca href=\"https:\/\/www.yieryi.com\/collections\/soil-ph-testing\" target=\"_blank\" title=\"soil pH meters\" rel=\"noopener\"\u003e\u003cstrong\u003esoil pH meters\u003c\/strong\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003epH, EC, moisture and temperature are sensor readings and should be interpreted according to the stated specifications and correct operating method.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e9 soil parameters in one tester\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSplit-type probe design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eClear digital display\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eManual and automatic measurement modes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStores up to 12 sets of data\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRechargeable Type-C design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSuitable For\u003c\/h3\u003e\n\u003cp\u003eVegetable gardens, flower beds, raised beds, greenhouses, orchards, lawns, farms and potted plants.\u003c\/p\u003e\n\u003cp\u003eNew to conductivity readings? Learn \u003cstrong\u003e\u003ca href=\"https:\/\/www.yieryi.com\/blogs\/news\/what-is-soil-ec\" rel=\"noopener\" target=\"_blank\"\u003ewhat soil EC means\u003c\/a\u003e\u003ca href=\"https:\/\/www.yieryi.com\/blogs\/news\/what-is-soil-ec\"\u003e\u003c\/a\u003e\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIf pH is your main concern, explore our \u003cstrong\u003e\u003ca href=\"https:\/\/www.yieryi.com\/collections\/soil-ph-testing\"\u003esoil pH meters\u003c\/a\u003e\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Yieryi Meter","offers":[{"title":"Default Title","offer_id":55784931885224,"sku":"YG-09S","price":135.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/1988\/7016\/files\/4-1.jpg?v=1784797389"}],"url":"https:\/\/www.yieryi.com\/collections\/best-sellers\/drip-irrigation.oembed","provider":"Yieryi Meter","version":"1.0","type":"link"}