The moisture meter can quickly measure the moisture content of the grain. 1. This product is Schumann 7.83HZ extremely low frequency generator with high accuracy and stability; 2. High stability frequency acquisition components, high stability pulse chip, accurate correction capacitor, accurate multi-loop resistance adjustment, shielded constant capacitor 3. Adopt newly optimized circuit design, gold-plated transmitter circuit 4. Allow people to relax physically and mentally, improve the perception of sounds and images by the human body, improve human health, increase work efficiency and have a good effect on mental stress 5. ABS material, impact resistance, environmental protection, heat resistance and low temperature resistance Specification: Item Type: 7.83HZ Wave Generator Material: ABS Model: Schumann-FM783 Objective: Not directly operate audio or video products to improve sound quality, but relax people's body and mind under the influence of cosmic environment, improve the perception of sound and images by the human body, improve human health, increase performance, and also have a good effect on mental stress Lithium battery 2000mah Schumann resonances applied to High Fidelity: 1. The player has some experience in high fidelity, and the level of high fidelity equipment should not be too low. 2. You can hear that the differences between the same system will cause changes in pitch on different cables. 3. It is recommended to purchase two trial versions (better results). 4. When placing the product on the speaker, in addition to the appropriate weight, vibration-resistant treatment is also required. Schumann resonances used for sleep: 1. It is recommended to buy a test kit at the head of the bed at a distance of more than 1 meter from the human body. 2. Test plus suitable weight for anti-vibration machining. 3. Use the paper cloth indicator light accordingly and use the night light to remove the product. 4. Try it for a week, then browse through the 7-day experience. List of packages: 1WxD 7.83 HZ Wavelength Generator 1 x Connection Line