Aliexpress
Click here… to search for Tinysa 100kHz-350MHz Tiny Spectrum Analyzer [EU] on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Europe 
. There’s only 1 record in my database, so I have no idea if the price is OK. I am tired of searching coupons, but I found one for you…
Link: Banggood product page
Coupon (65.14 USD): 13f142
(CouponsFromChina.com tip: you should apply the coupon 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): BG09975, 7d18f7, BGherra, BG11SHOP, BGG09975JP, BGJPiio024, BGG09975CZ, BGG09975, BG1G09975
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Not enough data to show price history chart… 49.99 USD 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).