Beckman Model G pH Meter

• Introduced 1934
• Manufactured by Beckman Instruments
  Made in South Pasadena, California
• 11.75 in. H x 11.25 in. W x 8.5 in. D
  Walnut, steel, porcelain, plastic, paper, rubber
• Not on display
• Gift of Dr. F. William Sunderman
• 2003.510.001

Description

A pH meter is an electronic voltmeter that uses a pH-responsive electrode to give a direct conversion of voltage differences to differences of pH at the temperature of the measurement. The Model G was introduced in 1934 by Arnold Beckman and was one of the first "table top," or portable, laboratory instruments available.