Try any of the medical/pharmaceutical supply shops on Jengjou Rd on the north side of the Taipei Train Station. I got mine there for weighing raw chemicals when I mixing my own B&W photography developers.
Thanks guys. My intended application for the scale is to weighing R/C components for R/C hobby use. I was able to buy at B&Q with better specifications for the first item but no ounce measurements. Only grams and TL? What is TL measurement unit?