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ECO ENTERPRISES Headquarters: 1240 NE 175th St. Suite B Shoreline, WA 98155 1-800-426-6937 Email: ecoenter@aol.com |
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These waterproof pH Pens are made for hydroponics. Range is -2.00 to 16.0 pH (full range) and accuracy is plus/minus .2 pH. Automatic calibration (1 or 2 points) and temperature compensation. The pH 5 models (pH and PPM models) have additional features such as replaceable electodes, stability indicators and automatic calibration. |
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| Manufacturer: Hanna | ||||||||||||||||||||
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