We recommend the products made by SOTA Instruments. We know them, we know the products and we know their units meet Bob Beck’s specifications. They've been around since 1996, they give great customer service and they knew Bob well.
SOTA, or any other product supplier, sells consumer products for well-being and relaxation. As manufacturers, this means that they cannot and won't answer or discuss any health-related questions.
To check out the SOTA units, visit www.sota.com.