Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
FY6900 Dual Channel DDS Function Arbitrary Waveform Signal Generator Pulse Signal Source Frequency Counter Fully Numerical Control 20MHZ/60MHZ – 20MHZ EU Plug
Banggood
Banggood warehouse is located in Europe 
. CouponsFromChina software could not find any coupon for this product in Banggood. I don’t know if this is a good price – number of records in my database is too low!
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG6900, BGherra, 7d18f7, bgshOOp10, Email5, BGELIG0920, BGHALLOWEEN, BG11SHOP, BGCuponation10, 13f142, BGf2c10f, BGcac5d3, BG57f9b5, BG1b8faa, BGGines, BGTools8, BG20236Tool, BGTOOS729, BGHONEYSP, BGESJY8
(probably won’t work, but you can try them out)
Other warehouses/versions
This item is available in 2 another warehouse/versions!
1. China – FY6900 Dual Channel DDS Waveform Signal Generator ($114.99)
2. Europe – FY6900 Dual Channel DDS Waveform Signal Generator [EU] ($-3)
Price history and price alert
Not enough data to show price history chart… $87.99 is the only recorded price. It was not cheaper than that since we have saved it in DB.
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)).