{"product_id":"groline-soil-test-direct-soil-hydroponic-ec-tester","title":"GroLine Soil Test™ Direct Soil \u0026 Hydroponic EC Tester","description":"\u003cdiv class=\"short-description\"\u003e\n\u003cdiv class=\"std\"\u003e\n\u003cem\u003e\u003cstrong\u003eWorks with rockwool and coco coir, too!\u003c\/strong\u003e\u003c\/em\u003e\u003cstrong\u003e \u003c\/strong\u003eExcellent and affordable device for reading the \"true\" nutrient concentration - the concentration in the root zone - which is much more important and accurate than the nutrient concentration in the runoff. It's also a great tool for determining when to stop flushing during or at the end of the flowering cycle. \u003c\/div\u003e\n\u003cdiv class=\"std\"\u003e \u003c\/div\u003e\n\u003cdiv class=\"std\"\u003eThe Soil Test™ Direct Soil EC Tester - HI98331 is a rugged and reliable pocket-sized tester that offers quick and accurate readings. The Soil Test™ Direct Soil EC Tester - HI98331 features a stainless steel penetration probe for direct measurement of conductivity in soils. With a compact size, single button operation, and automatic calibration, Soil Test is an excellent choice for taking direct conductivity measurements in soil.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cul class=\"atf-features\"\u003e\n\u003cli\u003eWaterproof\u003c\/li\u003e\n\u003cli\u003e4.5\" stainless steel penetration electrode\u003c\/li\u003e\n\u003cli\u003eAutomatic Temperature Compensation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv class=\"std\"\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe HI98331 features a stainless steel penetration electrode that provides the ability to take direct measurements in soil. When calibration is needed, simply submerge the electrode tip into calibration solution and and enter calibration mode for automatic 1 point calibration.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eElectrolytic conductivity, abbreviated as EC, is a measurement made in which electrical charges of particles in a medium are moved under the inŠfluence of a potential diff‹erence. EC is a measure of concentration, however, it is non-speci‡c for ion type. An ion is a charged particle present in the solution that contributes to the current Šflow. Ions are formed when a salt such as sodium chloride is dissolved in water to form particles having electrical charges. Sodium chloride, separates into Na\u003csup\u003e+\u003c\/sup\u003e and Cl\u003csup\u003e-\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eElectrical conductance, the ability of a substance to conduct an electrical current is the reciprocal of electrical resistance. “Conductance” and “Resistance” depend on the geometrical dimensions of the substance being measured. Conductivity and resistivity \u003c\/span\u003eare “normalized” terms that are used to denote a bulk intrinsic property of a substance. This is the measurement a standardized EC probe on a Conductivity or resistivity meter provides. Conductivity measurements can be used to provide additional industry specifi‡c measurements; TDS, Salinity and USP compliant conductivity. Many of Hanna’s meters provide these measurements also.\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eFeatures at-a-glance:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eOne-point calibration\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAutomatic calibration to 1413 \u003c\/span\u003e\u003cspan\u003eµ\u003c\/span\u003e\u003cspan\u003eS\/cm conductivity standard\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eAutomatic Temperature Compensation (ATC)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eSamples automatically compensated for temperature variations\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cspan\u003eUses a fixed 2%\/\u003c\/span\u003e\u003csup\u003eo\u003c\/sup\u003eC temperature correction coefficient\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eStainless steel penetration electrode\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAllows for direct measurement in soil\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv id=\"spec\" class=\"box-collateral box-additional\"\u003e\n\u003ch3 class=\"spec-header\"\u003e\u003cspan style=\"font-size: 1.17em;\"\u003eSpecifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable id=\"product-attribute-specs-table-1\" class=\"data-table\"\u003e\n\u003ccolgroup\u003e\n\u003ccol width=\"25%\"\u003e\n\u003ccol\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr class=\"first odd\"\u003e\n\u003cth class=\"label\"\u003eConductivity Range\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e0 to 4000 μS\/cm; 0.00 to 4.00 mS\/cm (dS\/m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eConductivity Resolution\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e1 μS\/cm; 0.01 mS\/cm (dS\/m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eConductivity Accuracy\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e±50 μS\/cm (0 to 2000 μS\/cm), ±300 μS\/cm (2000 to 4000 μS\/cm); ±0.05 mS\/cm (0.00 to 2.00 mS\/cm), ±0.30 mS\/cm (2.00 to 4.00 mS\/cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eTemperature Range\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e0.0 to 50.0°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eTemperature Resolution\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e0.1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eTemperature Accuracy\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e±1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eEC\/TDS Calibration\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eautomatic, one-point at 1.41 mS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eTemperature Compensation\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eautomatic, temperature coefficient (β) fixed 2% \/ °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eBattery Type\/Life\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eCR2032 Li-ion approximately 100 hours of continuous use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eElectrode\/Probe\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e114 mm (4.5 “) Stainless steel penetration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eEnvironment\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e0 to 50°C (32 to 122°F); RH max 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eDimensions\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e50 x 196 x 21 mm (2.0 x 7.7 x 0.9“)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e74 g (2.4 oz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eOrdering Information\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eHI98331 is supplied with a stainless steel penetration probe, batteries, and instrument quality certificate.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"last odd\"\u003e\n\u003cth class=\"label\"\u003eWarranty\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments, Inc.","offers":[{"title":"Each","offer_id":41930551754837,"sku":"6398","price":129.63,"currency_code":"USD","in_stock":true},{"title":"Case of 5","offer_id":42385984225365,"sku":"6398-CS5","price":648.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/3426\/6709\/files\/groline-soil-test-direct-soil-hydroponic-ec-tester-6398-5177118.jpg?v=1767475330","url":"https:\/\/www.bghydro.com\/products\/groline-soil-test-direct-soil-hydroponic-ec-tester","provider":"BetterGrow Hydro","version":"1.0","type":"link"}