I purchased a Bio Tuner from Sota Instruments using the Coupon code and it worked. I got the 10% discount.

However, shop around because after Sota charges you the shipping charges (from Canada) it might be best to purchase from ebay or elsewhere.

Yes I did about 5 month ago. Great quality products and friendly service. I used discount code CA53364 and got 10% off.

Could be there are legal ramifications in naming names. In any case Sota does make excellent devices.