The TM1 is a 6 mm pre-polarized condenser microphone used for test and measurement applications. The TM1 is known for its linearity, accurate response, consistency, ease of use and affordability. Equipped with a uniformly controlled omnidirectional polar pattern, the TM1 is designed to capture acoustic measurements for room analysis software programs, real time analyzers and other sound control devices. With a flat frequency range of 20 Hz ndash; 25 kHz, the TM1 is an excellent tool for sound engineers, sound companies and recording enthusiasts. The TM1 is designed, machined, assembled and tested by Audix in the USA.