The Ludlum Model 19A is a highly sensitive gamma microR meter with an internal 2.5 x 2.5 cm (1 x 1 in.) NaI detector. It has an alarm and a logarithmic meter scale.
For more information about training on Ludlum instruments, contact [email protected].
For more information about Ludlum products, visit our website https://ludlums.com/ or contact [email protected].