Niche Zero cheapest is thru kickstarter. Every month they will put out 50 units for sale. Make sure you get the right voltage. But you take the risk on paying tax plus sometimes required Suruhan Tenaga certification which is really troublesome. I bought mine from Dankoff with 10% discount. As for the scale,  I wouldn't pay more than RM 100 for it. Frankly speaking, just get a scale from Lazada or Shopee. If you need auto timer scale, last I check is around RM 60++ but only 0.1g accuracy.  For 0.01g accuracy without timer, I bought it around RM 30++ few years back.