$135.99 – tinySA ULTRA 100k-5.3GHz Handheld Spectrum Analyzer with 4 inch TFT Display High Frequency Output Signal.
When I was updating this page the price was $135.99 for TinySA ULTRA 100k-5.3GHz Handheld Spectrum Analyzer (in Banggood). You can create price alert here, copy coupons and view price history. What is best price?
Latest coupon code price check (UTC time):
Banggood ($135.99)
Banggood warehouse is located in China. I’m afraid that there’s no working coupon in Banggood. Well, is it a good price anyway? Well, this price is higher than average price ($135.33)
Link: Banggood product page
Price: $135.99
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGf9c700, BGESJY8, BGcabee2, BG0f80e6
(these codes were not working in latest coupon update, but you can check them out anyway)
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
Here is price history (for all/most countries) for TinySA ULTRA 100k-5.3GHz Handheld Spectrum Analyzer. The lowest price was: $126.
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)).