$202.99 – Sampling rate: 300MSA/S, Channel: 2, Model: PSG9080, Maximum frequency of sine wave: 80MHz.
JUNTEK PSG9080 Signal Generator is for $202.99 (in Banggood). Just check coupons out (with price alert and history). Best price?
Latest price update (UTC time):
Banggood ($202.99)
Banggood warehouse is located in China. Hmmm… There is no active coupon in Banggood at this moment. Is it a reasonable price for this item? According to my database, the average price is $204.66 and current price is $202.99, so it’s probably a good price!
Link: Banggood product page
Price: $202.99
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BG9080, BGherra, BGGines, BG4b906b, BGTOOS729, BG8FORMULAMX, BGBFDAY8, BGSPRING8OFF, BGALL8
(system checks these coupons on every price check (like once per 24 hours), 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
Price history (for all/most countries) for JUNTEK PSG9080 Signal Generator is here. The lowest price was: $179.99.
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)).