- The PSD21 is a rugged laboratory pH-meter designed for general use.
The zero and slope ofthe pH can be adjusted manually using rotary buttons in order to clearlydisplay the fundamental calibration concept and the characteristics of theelectrodes. - Its ergonomics andrugged design make this one of the most popular pH-meters available.
- For greaterversatility, thus instrument offers a 0-5 V analogue output so that it canbe hooked up to a recording device (flatbed plotter, logger). This analogueoutput also means that the instrument can be integrated into Computer-AssistedExperimentation environments.
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