Toolbox
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Celestron SkyMaster 25x70 binoculars$15525X Zoom Binoculars and 70mm lens dimeter size are suitable for observation and astronomy
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Celestron SkyMaster 20x80 binoculars$239Water Resistant - 20X Zoom Binoculars and 80mm lens dimeter size suitable for observation and astronomy
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Water Electrolysis Equipment$4Tool to test the content of dissolved substances in water by means of electrolysis (electricity)
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PH Meter HANNA HI 98129 Conductivity/TDS Tester$1
Hanna HI 98130 (combo) is waterproof, fast and accurate and portable (easy to carry everywhere).
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Calibration Liquid pH 10 - 3.78 liters$1
Calibration liquid pH 10.01 for calibration of a 1-gallon pH meter (3.78 Liters)
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Calibration Liquid pH 10 - 500 ml$1
Calibration liquid pH 10.01 for calibration of pH Meter size 500ml
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Calibration Liquid pH 10.01 - 500 ml (with certification)$1
Calibration liquid pH 10.01 for calibration The pH meter size 500ml is equipped with a certificate
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Calibration Liquid pH 9.18 - 230 ml$1
PH 9.18 calibration liquid measuring 230ml for calibration of the pH meter
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Calibration Liquid pH 10.01 - 230 ml$1
Calibration liquid pH 10.01 230ml size for pH Meter calibration