{"product_id":"hanna-instruments-groline-waterproof-ph-temperature-tester","title":"Hanna Groline Waterproof pH \u0026 Temperature Tester HI-98118","description":"\u003cp\u003eHanna Instruments GroLine Waterproof pH \u0026amp; Temperature Tester - the lab-grade professional choice for pH \u0026amp; Temperature Measurement\u003c\/p\u003e\n\u003cp\u003eThis GroLine pocket pH Tester is an affordable way to measure the pH of hydroponic nutrient solutions. Maintaining an optimal pH is essential to maximise optimum growth. The general rule of thumb is that as pH increases the solubility of minerals and nutrients decrease. It is important that nutrients are soluble for plants to uptake and use for growth.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt in temperature sensor for Automatic Temperature Compensated measurements\u003c\/li\u003e\n\u003cli\u003eRenewable junction to clear any clogging that causes readings to drift and be erratic\u003c\/li\u003e\n\u003cli\u003eStability indicator that disappears once a stable reading is obtained\u003c\/li\u003e\n\u003cli\u003eAutomatic calibration to one or two points at a push of a button\u003c\/li\u003e\n\u003cli\u003eUses Hanna’s Quick Cal pH\/EC standard with a pH value of 6.86\u003c\/li\u003e\n\u003cli\u003eBattery % level displayed at startup\u003c\/li\u003e\n\u003cli\u003eLow battery indicator that is displayed when less than 10% battery life is remaining\u003c\/li\u003e\n\u003cli\u003eBuilt-in temperature sensor for Automatic Temperature Compensated measurements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe pH of the nutrient solution can also affect the bacteria that fix nitrogen for the plant to use. Every plant has optimum pH levels for growth. Below is a table for the ideal pH range for a variety of plants.\u003c\/p\u003e\n\u003cp\u003eThe HI-98118 can be used to measure the pH in soils as well as nutrient solutions. To measure the pH of soil as a slurry it is recommended to use a mixture of 1 part soil to 1 part water. The slurry is allowed to rest for 10 minutes so that the solids will settle out and the pH of the liquid above can be measured.\u003c\/p\u003e\n\u003cp\u003eThe HI-98118 is an advanced meter while maintaining simplicity. The front of the meter has two buttons. One is for turning the meter on and off while the other is used to enter the calibration mode. There is a third button in the battery compartment that allows the user to customise the meter to their preference. Customisation includes temperature readout in °C or °F, automatic shut off selectable from 8 minutes, 60 minutes or disabled, and lastly the choice of using Hanna's Quick Cal pH\/EC standard or traditional buffers values of pH 4.01, 7.01 and 10.01.\u003c\/p\u003e\n\u003cp\u003eThe electrode features a unique extractable cloth junction.\u003c\/p\u003e\n\u003cp\u003eThe reference junction of a pH electrode, also known as a salt bridge, provides an electrical pathway between the internal reference cell and the sample. Any clogging of the junction will result in a disruption of the electrical pathway.\u003c\/p\u003e\n\u003cp\u003eWhen this happens the readings will be erratic and take a very long time to stabilise. With the Hanna extractable junction a small portion of 1\/8\" is extracted or pulled to expose a clean surface. With the junction renewed the clogging is cleared allowing the meter to still be used. The overall length of the junction is about 1\" so the junction should only be extracted periodically.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOther Hanna Groline Products\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.thehydrobros.com\/products\/hanna-groline-cleaning-solution-for-ph-electrodes-120ml\"\u003eCleaning Solution\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.thehydrobros.com\/products\/hanna-groline-quick-cal-for-phec-120ml\"\u003eQuick Calibration for pH and EC\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.thehydrobros.com\/products\/hanna-groline-storage-solution-for-ph-electrodes-120ml\"\u003eStorage pH Solution\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.thehydrobros.com\/products\/hanna-groline-ph-tester-hi-98115\"\u003e98115 pH Meter\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.thehydrobros.com\/products\/hanna-instruments-groline-waterproof-ph-temperature-tester\"\u003e98118 pH\/Temperature Meter\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.thehydrobros.com\/products\/hanna-instruments-groline-waterproof-ecppm-tester\"\u003e98318 EC\/TDS\/Temperature Meter\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.thehydrobros.com\/products\/hanna-groline-phectdstemperature-meter-hi-9814\"\u003e9814 pH\/EC\/TDS Meter\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.thehydrobros.com\/products\/hanna-groline-monitor-hi-981420\"\u003e981420 pH\/EC\/Temperature Meter\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HANNA","offers":[{"title":"Default Title","offer_id":42366070620375,"sku":"5899","price":110.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0561\/9092\/7032\/products\/nutrient-mangement-hanna-instruments-groline-waterproof-ph-temperature-tester-36571166376151.jpg?v=1780156446","url":"https:\/\/www.thehydrobros.com\/de-de\/products\/hanna-instruments-groline-waterproof-ph-temperature-tester","provider":"The Hydro Bros","version":"1.0","type":"link"}