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Colorimetric pH Test Kit Our Price: $12.95		Pocket Microscope 30X with light Our Price: $14.95		Meter-PHTestKit - Colorimetric pH Test Kit Our Price: $15.95



HM Digital TDS-80 Economy Meter for EC, TDS and Temperature Our Price: $45.99		HM Digital PH & Temperature Meter-Economy Our Price: $59.95		Milwaukee TDS Waterproof Meter Our Price: $69.95



HM Digital Professional Waterproof Meter for EC, TDS and Temperature Our Price: $75.99		HM Digital / #pH-200 / Professional pH HM Digital pH Meter Our Price: $99.95