Simpson Electric is a well-known manufacturer of analog and digital panel meters and test equipment, including volt-ohm-milliammeters (VOMs).

History: The company was founded in 1927 and is known for its innovations in the instrument industry, such as the first commercially practical core meter movement.

Products: Simpson Electric produces a wide range of analog and digital meters, including round, rectangular, and wide-vue styles.

Notable Models: One of their most famous products is the Simpson 260 VOM, a popular analog multimeter that has been in production since the 1930s.