COLEMAN
N e w Coleman pH Meter features simple controls, 0 . 0 5 pH accuracy Practical, precise pH measurement is easiest with Coleman's new Companion pH Meter. Here's why: ACCURACY: Within 0.05 pH. SIMPLICITY: Human-engineering pays off in greatest convenience. Three controls cover all instrument functions—only one control is needed for routine measurements. No uncertain push-buttons to fuss with. STABILITY: Zero-restoring circuit makes instrument completely drift-free. READABILITY: Widest practical scale ( 6 ^ inches) permits easy, direct reading to 0.02 pH. Mirrorbacked panel permits easy, parallax-free reading. VERSATILITY: Measures both pH and milli-volts; ranges: 0-14 pH and 0-1400 mv. Simple accessories adapt instrument to Karl Fischer titrations and auto-
matic temperature compensation in just a few seconds. Potentiometer or current type recorders plug directly into back panel. PRACTICALITY: Companion uses famous Coleman screw base glass and reference electrodes. No need to buy additional "small sample assemblies" . . . these electrodes require only 3.5 ml sample and can be used in containers as small as a 10 ml beaker. Accessory adapter permits use with alien electrodes. Lineoperated (100-130 volts, 5 0 / 6 0 cycles) with full voltage stabilization. ECONOMY: Realistically priced at $300.00. Find out how the simplified controls and advanced circuitry of the new Companion can help save money in your laboratory—ask for a demonstration, or write for a copy of B u l l e t i n CB-267.
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C &E N
INSTRUMENTS,
INC.,
MAY WOOD,
ILLINOIS
