A pH meter measures the acidity or alkalinity of a substance by checking the ratio of positively charged protons to negatively charged electrons using a probe. A portable meter allows you to accurately check the pH of a sample outside of the lab. This comes in handy for environmental studies such as those measuring water and soil quality. When purchasing a handheld pH meter, it is important to check the range of measurement, how the measurements are taken and whether extra functionality is needed, such as the ability to load data directly onto a computer or phone.
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| Company | OHAUS Corporation | OHAUS Corporation | OHAUS Corporation |
| Item | Starter ST10 pH Meter | Starter ST400 Portable pH Meter | Starter ST400M Portable Multi Parameter pH Meter |
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| Catalog Number | ST 10 | ST400 | ST400M |
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| Description | Starter ST10 are fully waterproof pen meters when you are simply looking for an economical meter that will provide accurate measurement without restriction. | Starter 400 Portable Water Analysis Meters are robust, lightweight, battery-operated units with waterproof housing, which makes them ideal for prolonged use in wet environments, and a rubber protective case fit for field testing. A rechargeable lithium battery ensures hours of trouble-free testing Starter 400 Portable Water Analysis Meters are robust, lightweight, battery-operated units with waterproof housing, which makes them ideal for prolonged use in wet environments, and a rubber protective case fit for field testing. A rechargeable lithium battery ensures hours of trouble-free testing in the field. Intuitive software and an easy-to-view LCD allows for simple operation. A built-in USB port enables easy data transfer.... Read More | Starter 400M Multi Parameter Portable Water Analysis Meters are robust, lightweight, battery-operated units with waterproof housing, which are ideal for testing pH, conductivity, TDS, salinity and resistivity in wet environments. A rechargeable lithium battery ensures hours of trouble-free testing Starter 400M Multi Parameter Portable Water Analysis Meters are robust, lightweight, battery-operated units with waterproof housing, which are ideal for testing pH, conductivity, TDS, salinity and resistivity in wet environments. A rechargeable lithium battery ensures hours of trouble-free testing in the field. Intuitive software and an easy-to-view LCD allows for simple operation. A built-in USB port enables easy data transfer.... Read More |
| pH Range | 0 ; 14 | -2 to 16 | -2 to 16 |
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