Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – TS100 OLED Soldering Iron Sapphire Version [EU] (-3 USD)
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (47.76 USD): BGTool15
Coupon (47.76 USD): BGherra
Coupon (49.45 USD): TOOLS15
Coupon (50.57 USD): BGTT10
Coupon (50.57 USD): bGhOnEy10
(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): bgsport, 94bba2, aff7off, 502C6B, elec, a9b6de, BGss506, BGtk85mini100, BGsolder15, BGTS100B, BG23SW, BGSPTS100B, BG15sh, AFfbG10, BGVDay10%off, BG15PTools, 226d2c, BGMPB2020, a04795, BGdragonBoat, BGSS10%SW, 13f142
(probably won’t work, but you can try them out)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – TS100 OLED Soldering Iron Sapphire Version [EU] (-3 USD)
Price history and price alert
Check out price history chart (for all/most countries) for TS100 OLED Soldering Iron Sapphire Version.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).