$40.47 – Digital 936A I 40W Solder Station Iron Lead-Free High Temperature Range 200-480°℃ Anti-Static design Low Ground Resistance Ideal for Repair Works.
You can get Digital 936A I 40W Soldering Station for $40.47 with coupon (from Banggood). Price history, coupons and price alert are available on this page. What is best price?
Latest coupon code price check (UTC time):
Banggood ($40.47)
Banggood warehouse is located in China. Isn’t it too expensive? IMHO this is a good price, coz it’s lower than average ($42.49) There is one great coupon!
Link: Banggood product page
Price without coupon: $43.99
1. ($40.47): BGPowerTLS1
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGPowerTLS2
(these coupons are old, so probably won’t work)
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for Digital 936A I 40W Soldering Station is here. The lowest price was: $37.99.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).