The TM1 Plus is a kit which includes the TM1 measurement microphone, threaded acoustic windscreen, shock mount clip, 1/2 inch calibrator adaptor, and microphone calibration data on a USB drive. The data files include the microphone's sensitivity data and a frequency response table to use as a mic correction curve in Smaart.
With a flat frequency range of 20Hz - 20 kHz, and a user-friendly price point of only $299, the TM1 is an excellent choice for sound engineers and sound companies looking for an accurate, affordable measurement mic.