BT7 Bio-Tuner (Brain tuner)
We proudly introduce the Bio-Tuner model BT7, the latest Bio-tuner (Brain-tuner) from SOTA Instruments Inc. This unit replaces all previous Bio-tuner BT models, including the original BT6 Pro and the BT5.
The latest design, introduced spring 2007, has replaced the headset with a set of ear-clips. The ear-clips appear to provide better, easier-to-use results.
The Bio–Tuner is an electronic relaxation system based on the research by Bob Beck that was first introduced with the BT5 in 1983.
The BT7 Bio–Tuner outputs a modified rectilinear waveform with over 500 harmonic frequencies in each pulse. 6 different user-selectable Modes settings are available.
This is the very latest version of the Bio-tuner. The Bio-Tuner is an electronic relaxation system that has been in use for over 20 years world-wide. Micro–current energy pulses appear to have a profound balancing effect on the body and tend to produce a state of over–all relaxation and well being. The Bio-Tuner outputs a modified rectilinear waveform with over 500 frequencies in each pulse.
The BT7 offers the following advanced features:
- Quartz crystal frequency control.
- Advanced microcomputer operation. The proprietary software routine is written by SOTA to ensure consistent and reliable output.
- Built–in 20 minute digital timer.
- Custom ear-clip connection
- Very simple intuitive operation.
- A push-button switch to easily change the output to each of the 6 different modes. (Mode 1 is the same as the BT5pro.)
- Two of the modes contain the 7.83 Hz Schumann (Earth) frequency.
- Ear-clip and Output Signal Electrical Circuit Verification Indicator
- Low battery warning light.
The BT7 is manufactured to the highest standards for the utmost quality and reliable service. It offers a full 3 year warranty on all internal components!

For more detailed info on the BT7 click here.

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