Right now the best price with coupon code for SM201 Professional Binocular Compound Microscope 40X-2500X is $199.99 (in Banggood). You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
SM201 Professional Binocular Compound Microscope High Precision 40X-2500X Magnification Mobile Adapter Compatible with SV189 Digital Eyepiece Perfect for Lab Biology and Research – EU Plug
Latest coupon and price update (UTC):
Banggood ($199.99)
Banggood warehouse is located in China. There are no active coupons for this product, but the price is pretty low isn’t it? Is it a low price? Wow! That’s the lowest price in CouponsFromChina database!
Link: Banggood product page
Price: $199.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGBFDAY8, BGNEWYEAR8
(probably won’t work, but you can try them out)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for SM201 Professional Binocular Compound Microscope 40X-2500X? There we go.
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)).