These might be helpful references
A Ruten search that indicates Pulse Oximeters should cost about NT$ 600 to 700 人氣推薦 - 2022年3月 | 露天拍賣 (ruten.com.tw)
Meanwhile, if you are an Amazon Prime user, you can find oximeters for -30% to -40% less with free shipping (if you include it in an order that totals over US$ 60)
