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... Calibration solutions for these pens come in a box of 25 sachets. Placing your pH pen in storage solution will lengthen the life of your electrode. The pH pen can be calibrated ...
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USD 70.88
EUR 49.95
Horticulture Source
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... It measures pH, EC and TDS (PPM) with one probe. PH is ... Calibration solutions are available below. You can use either the 1.413 solution for EC or the 1500 TDS solution. You do not need both because when you calibrate EC, the TDS is also calibrated ...
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USD 113.46
EUR 79.95
Horticulture Source
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... instrument and one single probe! This easier and faster to calibrate portable meter has a smaller, ergonomic and lighter case design. ... with a MA850 combination electrode, 9v battery, 20ml packet buffer solution of pH 7.01, 1500 ppm and 1413 !S/cm ...
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USD 225.57
EUR 158.95
Horticulture Source
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... monitor, range: 0-1990 ppm with accuracy of 2% full scale and with 1 point manual calibration and automatic temperature compensation. Set point range 700 to 1800 ppm, and led visual alarm active when reading is lower than set point. Supplied with 12v DC power adapter, MA812B/2 conductivity probe and 20ml. 1500 ppm packet buffer solution and screwdriver for calibration ...
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USD 123.39
EUR 86.95
Horticulture Source
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... monitor, range: 0-1990 ppm with accuracy of 2% full scale and with 1 point manual calibration and automatic temperature compensation. Set point range 700 to 1800 ppm, and led visual alarm active when reading is lower than set point. Supplied with 12v DC power adapter, MA812B/2 conductivity probe and 20ml. 1500 ppm packet buffer solution and screwdriver for calibration ...
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USD 70.88
EUR 49.95
Horticulture Source
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