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No need to be without an expanded scale pH meter—it's only $ 4 0 more.
Photovolt's Expander IV, pH m e t e r 112, is $395.00 —only $40 more than most laboratory models. Any range of four pH units can be expanded over the entire scale. This solid state unit is readable and reproducible to within 0.005 pH and accurate to within 0.01 pH. An expanded millivolt range, ± 140 mv, readable to 0.5 mv extends Expander IV's ability to all ion selec tive electrodes.
PHOTOVOLT
Expander IV is supplied with a single, fast, high-sensitivity electrode, but it also accepts all others, including ion selective and redox elec trodes. An output is available for Karl Fischer titra tions, as well as a 10 mv recorder output. Our point of view is that there is no longer any reason to be w i t h o u t an expanded scale pH meter. What's your point of view?
CORPORATION
1115 Broadway, New York, N.Y. 10010 • (212) 989-2900
"SEE US AT BOOTH 1010 PITTSBURGH SHOW." Circle No. 112 on Readers' Service Card
