PAUL N. GARDNER CO. INC.: The miniLab Pocket pH Meters contain a virtually unbreakable non-glass silicon chip sensor that gives stable readings in seconds. Part of the H-Series family of non-glass probes, miniLab meters use ISFET (ion-sensitive field effect transistor) sensor technology that contains several proprietary layers deposited selectively on a silicon substrate. The final layer possesses an affinity for hydrogen ions only.

The quantity of hydrogen ions at or near the sensor surface causes an electrical effect that is detected and measured as pH. Features include waterproof (IP67) operation, automatic temperature compensation and economical measurement of small sample volumes.

Call 800/762.2478.