{"product_id":"direct-soil-measurement-ph-portable-meter-hi99121","title":"Direct Soil Measurement pH Portable Meter - HI99121","description":"\u003cdiv style=\"text-align: center; margin: 0 0 48px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/hi1292d.jpg\" alt=\"pH meter for direct soil measurement\" loading=\"lazy\" style=\"display: block; max-width: min(100%, 640px); height: auto; margin: 0 auto;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 24px 48px; margin: 0 0 48px;\"\u003e\n\u003cdiv style=\"flex: 1 1 260px; max-width: 440px; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/fc215d-fill.png\" alt=\"Maintenance free gel filled electrode\" loading=\"lazy\" style=\"display: block; max-width: 100%; height: auto; margin: 0 auto;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 340px; min-width: 0;\"\u003e\n\u003ch4 style=\"margin-top: 0;\"\u003eRefillable\u003c\/h4\u003e\n\u003cp\u003eTurn cap to create positive head pressure allowing for more reference electrolyte to flow.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 24px 48px; margin: 0 0 48px; flex-direction: row-reverse;\"\u003e\n\u003cdiv style=\"flex: 1 1 260px; max-width: 440px; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/check-mark.png\" alt=\"Maintenance free gel filled electrode\" loading=\"lazy\" style=\"display: block; max-width: 100%; height: auto; margin: 0 auto;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 340px; min-width: 0;\"\u003e\n\u003ch4 style=\"margin-top: 0;\"\u003eBuilt-In Temperature Sensor\u003c\/h4\u003e\n\u003cp\u003eAutomatic compensation of temperature variations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 24px 48px; margin: 0 0 48px;\"\u003e\n\u003cdiv style=\"flex: 1 1 260px; max-width: 440px; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/check-mark.png\" alt=\"Maintenance free gel filled electrode\" loading=\"lazy\" style=\"display: block; max-width: 100%; height: auto; margin: 0 auto;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 340px; min-width: 0;\"\u003e\n\u003ch4 style=\"margin-top: 0;\"\u003eAmplified Electrode\u003c\/h4\u003e\n\u003cp\u003eFast,  stable response that is immune to electrical noise due to humidity.\u003c\/p\u003e\n\u003cp\u003eSoil can be acid,  neutral or alkaline,  according to its pH value. Most plants prefer a pH range from 5.5 to 7.5; but some species prefer more acid or alkaline soils. Nevertheless,  every plant requires a particular range of pH,  for optimum growth. \u003cbr\u003e\u003cbr\u003epH strongly influences the availability of nutrients and the presence of microorganisms and plants in the soil. For example,  fungi prefer acidic conditions whereas most bacteria,  especially those supplying nutrients to the plants,  have a preference for moderately acidic or slightly alkaline soils. In fact,  in strongly acidic conditions,  nitrogen fixing and the mineralization of vegetable residual is reduced. Plants absorb the nutrients dissolved in the soil water and the nutrient solubility depends largely on the pH value. Hence,  theavailability of elements is different at different pH levels. \u003cbr\u003e\u003cbr\u003eEach plant needs elements in different quantities and this is the reason why each plant requires a particular range of pH to optimize its growth. For example,  iron,  copper and manganese are not soluble in an alkaline environment. This means that plants needing these elements should theoretically be in an acidic type of soil. Nitrogen,  phosphorus,  potassium and sulfur,  on the other hand,  are readily available in a pH range close to neutrality. Furthermore,  abnormal pH values,  increase the concentration of toxic elements for plants. For example,  in acid conditions,  there can be an excess of aluminum ions in such quantities that the plant cannot tolerate. Negative effects on chemical and physical structure are also present when pH values are too far from neutral conditions (break up of aggregates,  a less permeable and more compact soil). \u003cbr\u003e\u003cbr\u003eThe HI99121 meter features a large multi level LCD screen which displays both pH and temperature readings simultaneously with 0.01 pH resolution and an accuracy of ±0.02 pH. The LCD screen also has indicators for calibration status and stability,  as well as on-screen tutorial messages. The HI99121 has many advanced features that are found in more expensive portable instrumentation including automatic calibration,  buffer recognition, and temperature compensation. The battery percent level is displayed at start up alerting the user to the remaining battery power that is available. The supplied HI12923 is a glass body,  amplified pH electrode with a built-in temperature sensor designed specifically for measuring the pH in soils.\u003c\/p\u003e\n\u003ch5\u003eFeatures at-a-glance\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eAutomatic Temperature Compensation\u003c\/li\u003e\n\u003cli\u003eOne or two-point automatic calibration\u003c\/li\u003e\n\u003cli\u003eBEPS - Alerts the user of low battery power that could adversely affect readings\u003c\/li\u003e\n\u003cli\u003eCompact,  heavy-duty,  and waterproof\u003c\/li\u003e\n\u003cli\u003eBattery % displayed on start-up\u003c\/li\u003e\n\u003cli\u003eHELP feature,  displays messages on LCD\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNote: Use the soil auger for stony ground to prevent damaging the glass probe.\u003cbr\u003e             For high accuracy and ensure the soil is wet use the HI7051M soil preparation solution.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e HI99121\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eName\u003c\/td\u003e\n\u003ctd\u003e Direct Soil Measurement pH Portable Meter - HI99121\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Range\u003c\/td\u003e\n\u003ctd\u003e -2.00 to 16.00 pH; -2.0 to 16.0 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Resolution\u003c\/td\u003e\n\u003ctd\u003e 0.01 pH; 0.1 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Accuracy\u003c\/td\u003e\n\u003ctd\u003e ±0.02 pH; ±0.1 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Calibration\u003c\/td\u003e\n\u003ctd\u003e automatic, at one or two points with two sets of standard buffers (pH 4.01 \/ 7.01 \/ 10.01 or pH 4.01 \/ 6.86 \/ 9.18)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Temperature Compensation\u003c\/td\u003e\n\u003ctd\u003e automatic ‐5.0 to 105.0 °C\/23.0 to 221.0 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH CAL Check (electrode diagnostics)\u003c\/td\u003e\n\u003ctd\u003e probe condition indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003emV Range\u003c\/td\u003e\n\u003ctd\u003e ±825 mV (pH‐mV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003emV Resolution\u003c\/td\u003e\n\u003ctd\u003e 1 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003emV Accuracy\u003c\/td\u003e\n\u003ctd\u003e ±1 mV (pH‐mV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e -5.0 to 105.0°C \/ 23.0 to 221.0°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Resolution\u003c\/td\u003e\n\u003ctd\u003e 0.1°C \/ 0.1°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd\u003e ±0.5°C (up to 60°C); ±1.0°C (outside) \/ ±1°F (up to 140°F); ±2.0°F (outside)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Electrode\u003c\/td\u003e\n\u003ctd\u003e HI12923 glass body, pre-amplified pH electrode for soil measurement with internal temperature sensor, quick connect DIN connector and 1 m (3.3’) cable (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutomatic Shut-Off\u003c\/td\u003e\n\u003ctd\u003e user selectable: after 8 min, 60 min or disabled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Type\/Life\u003c\/td\u003e\n\u003ctd\u003e 1.5V (3) AAA \/ approximately 1400 hours of continuous use; auto-off after 8 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Protection\u003c\/td\u003e\n\u003ctd\u003e IP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironment\u003c\/td\u003e\n\u003ctd\u003e 0 to 50°C (32 to 122°F); RH max 100%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e 154 x 63 x 30 mm (6.1 x 2.5 x 1.2”)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e 196 g (6.91 oz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eOrdering Info\u003c\/h3\u003e\u003cp\u003eHI99121 is supplied with HI12923 pH electrode, HI721319 soil auger, HI7051M soil preparation solution (230 mL), HI70004 pH 4.01 buffer solution sachet (20 mL), HI70007 pH 7.01 buffer solution sachet (20 mL), HI700663 cleaning solution sachet for inorganic soil deposits (20 mL), HI700664 cleaning solution sachet for organic soil deposits (20 mL), 100 mL plastic beaker, batteries, instructions, and a hard carrying case.\u003c\/p\u003e\u003ch3\u003eManuals\u003c\/h3\u003e\u003cp\u003e\u003ca target=\"_blank\" href=\"https:\/\/manuals.hannainst.com\/HI99121\"\u003eDirect Soil Measurement pH Portable Meter - HI99121\u003c\/a\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":67871272206705,"sku":"HI99121","price":73140.3,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/hi99121_c.jpg?v=1792646011","url":"https:\/\/hannainst.in\/products\/direct-soil-measurement-ph-portable-meter-hi99121","provider":"hanna","version":"1.0","type":"link"}