New CORNING® Model 5 pH Meter gives you ±.1 pH accuracy with

N e w CORNING®Model 5 pH Meter gives you ±.1 pH accuracy with solid-state stability and reliability,

For just *194. Here's the first trouble-free and dependable generalpurpose pH meter that's also economical. Solid-state circuitry makes the CORNING Model 5 reliable—no tubes to replace, no batteries to buy, virtually no service requirements. The Model 5 delivers ± . 1 pH accuracy on a δ 1 //' scale that makes the 0 to 14 pH range readable to .05 pH. Repeatability is ±.05 pH with the taut-band suspension meter. Provision for Karl Fischer titrations, automatic temperature compensation, recorder output, and for redox-type titrations is built in. The meter, with pH measurement instructions printed on its case, is suspended in a stainless steel cradle that keeps it above the bench where spills occur. The cradle also allows the user to tip the meter for easy reading. Accessories with the Model 5 include a set of CORNING

The new standards come from

Series 500 Electrodes, specially designed to match the low-drift characteristics of the meter, and a comprehensive instruction manual. Try this new standard in accurate pH measurement and economy. Call your Corning Scientific Instruments dealer or your Corning representative to arrange a demonstration. For complete specifications, write to Corning Glass Works, Scientific Instruments, Dept. CE, Medfield, Mass. 02052.

CORNING SCIENTIFIC INSTRUMENTS

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