pH and RPM
RPM RPM is measured by three methods; mechanical, electric which uses reflections for optical RPM and stoboscopic. Testo offer instruments to suit all these methods: The Testo 475 is ideal for quick measurements in inaccessible locations. The stroboscope also has a mechanical rpm sensor with different measuring tips. The Testo 465 is ideal for uncomplicated optical rpm measurement without contact. The Testo 470 provides an ideal combination of optical and mechanical rpm measurement. >more information pH Testo have up to date and easy to use practical measurement engineering solutions suitable for everyday use on the field. Our pH probes which function with a gel electrolyte as a reference medium and which are leak proof, maintenance free and not affected by dirt ingress, unlike conventional sensors. >more information
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