Page 1 of pH, EC & TDS by Worm's Way, Inc.

hand held plant nutrition expert the sunleaves tds expert plus is a highly-advanced handheld meter that measures nutrient solution electrical conductivity ec total dissolved solids tds and temperature waterproof meter features an easyto-read lcd screen auto-off and data-hold functions low-battery indicator automatic temperature compensation atc to ensure accurate readings three different conversion factors to convert ec to tds and push-button digital adjustment for precise calibration even though the meter comes factory calibrated at 1413 micro-seimens s the sunleaves tds expert plus includes a lanyard batteries and one-year warranty step500 sunleaves tds expert plus 74.95 ph/ec/tds mightier than the sword thanks to the sunleaves tds essential digital pen keeping tabs on your hydroponics nutrient solution just got easier the sunleaves tds essential digital pen measures total dissolved solids from 0 to 9,990 parts per million with a resolution of one part per million and includes a data hold feature for temporary tds reading storage std500 sunleaves tds essential digital pen 39.95 sunleaves ph test kit the sunleaves ph test kit provides hydroponics growers with a simple foolproof method of obtaining fast and accurate ph readings super concentrated formula requires only one drop per test each 30ml bottle provides over 800 tests measures from ph 4.0 through 8.0 highly accurate with a long shelf life the side of the bottle sports an easy-toread waterproof color chart test comes with a quality test tube sptk500 sunleaves ph test kit 7.95 essential solution the sunleaves tds essential calibration solution is the right match for regulating the sunleaves tds essential digital pen and tds expert plus ensuring accurate readings every time solution measures a standard conductivity of 1,000 ppm std510 sunleaves tds essential calibration solution 3 oz 7.95 pens need some power the sunleaves pen battery comes four per pack and powers most ph and tds pens spb500 sunleaves pen battery 4 pk 5.95 nutrients ph and maximizing efficiency did you know that if your ph levels climb too high or fall too low some nutrients become available to your plants at toxic levels while others become completely unavailable ranging from 0 acid to 14 base the ph scale is used to determine the acidity or alkalinity of a substance plants growing in hydroponics solutions which are either too acidic or too basic have trouble absorbing what they need for steady growth a ph of 7 is considered neutral and for optimal nutrient uptake the ph of your nutrient solution should be between 5.5 and 6.8 depending on the types of plants you ll be growing because evaporation temperature and amount of light can affect ph levels frequent monitoring of nutrient solution ph is critical if you aren t using a ph monitor that remains directly in the nutrient bath to offer continuous readings you ll need to measure the ph of your nutrient solution at least twice a week with a hand-held ph meter hand-held meters feature delicate glass probe tips which are dipped into nutrient solution for periodic testing and they offer easy-to-read digital results right away if you find that your solution is too acidic or too alkaline you can make incremental changes with ph up or down additives as needed some solutions commonly used to lower ph include nitric acid phosphoric acid citric acid and vinegar potassium hydroxide is typically used to raise ph will be using and adjust it as needed before mixing your nutrient solution and never use hot water when mixing hydroponics nutrient the scale that you see on the inside of hot water pipes is a form of calcium that will raise your ph to irritating levels aside from staying on top of the ph levels in your hydroponics system you should also test the strength of your nutrient solution because as the water in the solution evaporates the nutrients become more concentrated also as the plants take in what they need the nutrient concentration can in turn weaken since hydroponics nutrients are mainly made up of salts and salts in solution conduct electricity you can measure the concentration of your nutrient solution by measuring how well it conducts electricity hydroponics gardeners all over the world monitor nutrient levels this way but they have different preferences for the format of their test results growers in the u.s often examine total dissolved solids tds as a simple ratio known as parts per million ppm high concentrations of salts increase the solution s electrical conductivity ec and this is the standard measure used in canada europe and elsewhere a test of electrical conductivity can help growers to determine when it s time to add nutrients like ph testers ec and tds meters are available in less expensive hand-held models and more expensive continuous-read varieties too 54 to prevent possible problems take a ph reading of the water you 800-274-9676

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