Aliexpress
Click here… to search for POWER-Z KT001 USB PD Tester on Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. One coupon is available. Cool!
Link: Banggood product page
Coupon (72.76 USD): BGd0b05d
(CouponsFromChina.com tip: apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): elec, BGmodule12, BGE13, AFfbG10, BGVDay10%off, bGhOnEy10, BGdragonBoat, bgshOOp10, BgoFErTaSchInA10, BGELIG0920, BgcLuBofErtA10, BGRUMB15, BGAFF10OFF, BGCuponation10, BGHONEY2110, 13f142
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Do you need price history chart (for all/most countries) for POWER-Z KT001 USB PD Tester? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).