pH Meter

Dr. Beckman’s entry into the world of electrochemical instrumentation began in 1934 with the invention of the acidimeter, a portable pH meter.  Click on the thumbnails below to see some of the Beckman pH meters on display at the ISL, starting with the first commercially successful pH meter, the Model G.

Model G
Model G
H2
H2
Model M
Model M
Model N
Model N