Electromechanical indicators are one of the smallest in the industry

Stocked by Mouser, PUI Audio SMI-1027 Series indicators are claimed to currently be the smallest electromechanical indicators in the industry at 9.6mm x 5mm, making them more than 25% smaller in footprint and 28% in profile than the previous SMI-1324. The SMI-1027-TW-5V-R offers a rated voltage of 5VDC (4VDC-7VDC range) and produces a 2700Hz tone at 80dBA minimum. The SMI-1027-TW-12V-R offers a rated voltage of 12VDC (7VDC-15VDC range) and produces a 2700Hz tone at 85dBA minimum.