HM Digital 4-in-1 pH/EC/TDS/Temperature Combo
SKU: 21136
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$70.24
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$209.36
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HM Digital Calibration TDS 1000 ppm NaCl - 3oz (89ml)
SKU: 21135
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$4.30
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$8.95
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HM Digital Hydromaster - Continuous pH/TDS/EC/Temperature meter
SKU: 21137
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$129.39
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$296.79
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HM Digital Hydromaster 100 - Continuous pH/TDS/EC/Temp meter
SKU: 22354
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$225.33
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$284.95
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HM Digital Hydromaster 500 - Continuous pH/TDS/EC/Temp meter
SKU: 22355
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$286.00
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$359.95
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HM Digital Hydromaster Portable - pH/TDS/EC/Temp
SKU: 21952
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$216.00
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$274.95
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HM Digital Hydromaster Portable - pH/TDS/EC/Temperature
SKU: 21138
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$91.65
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$273.17
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HM Digital Pen style TDS/Temp meter with case
SKU: 21953
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$17.33
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$19.95
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HM Digital pH / TDS / EC / Temp meter
SKU: 11160
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$121.19
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$159.95
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HM Digital pH 4.0 buffer solution - 20 packets of 20 ml
SKU: 21140
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$15.70
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$26.74
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HM Digital pH Temperature Pro Series Waterproof Mater
SKU: 21134
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$81.71
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$99.95
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HM Digital Pro Series Dual Probe pH/TDS/EC/Temp meter
SKU: 21954
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$141.71
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$174.95
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HM Digital Pro Series Waterproof pH/Temp Meter
SKU: 5238
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$78.75
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$99.95
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HM Digital Water Resistant TDS/EC/Temp Meter
SKU: 5234
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$30.95
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$39.95
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