J.R. Bjornson demonstrates a liquid indicator that he got for free from the Canadian Institute for the Blind. These devices also come in a vibrating option that has a magnet so it can be attached to a refrigerator.
Image: YouTube / J.R. Bjornson
J.R. Bjornson demonstrates a liquid indicator that he got for free from the Canadian Institute for the Blind. These devices also come in a vibrating option that has a magnet so it can be attached to a refrigerator.
Image: YouTube / J.R. Bjornson