Micro Essential Lab HJ613 Plastic Hydrion Insta-Check pH Test Paper Dispenser, 0 - 13 pH, Single Roll Jumbo auspowers_batchtwo Do not ignore automatic car

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Each pager includes a charging socket that can be charged separately Long Service Time Built-in 400mAh rechargeable batteryStandby time: 72 hoursUse time: 36 hours Read more 3 Prompt Mode Buzzer+Flash

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5-Ounce: 2

Micro Essential Lab HJ613 Plastic Hydrion Insta-Check pH Test Paper Dispenser, 0 - 13 pH, Single Roll Jumbo auspowers_batchtwo Do not ignore automatic carMicro Essential Lab HJ613 Plastic Hydrion Insta Check pH Test Paper Dispenser, 0 13 pH, Single Roll Jumbo One roll of pHydrion Insta Check testing papers is supplied in a plastic, protective dispenser with a color chart for simple, single color matching. This 1 2 inch paper tests one of the widest pH ranges available in a single paper with each full pH unit showing a distinct color change and provides accurate, reproducible readings from an immediate