$39.99 – 10KHz-1.5GHz MF HF VHF UHF Digital NanoVNA-H Vector Network Antenna Analyzer Support 32G SD Card.
When I was updating this page, then coupon price was $39.99 for 10KHz-1.5GHz MF HF VHF UHF Digital NanoVNA-H Vector Antenna Analyzer (in Banggood). Go down and check coupons out. Remember to check price history if it is available. Best price?
Latest coupon code price check (UTC time):
Banggood ($39.99)
Banggood warehouse is located in China. Hmmm… There is no active coupon in Banggood at this moment. Low/high price? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $37.56)
Link: Banggood product page
Price: $39.99
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BG6b400f, BGM1TOOLS88, BG53ef2b, BG20236Tool, BGTOOS729, BGMAI666
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
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
Check out price history chart (for all/most countries) for 10KHz-1.5GHz MF HF VHF UHF Digital NanoVNA-H Vector Antenna Analyzer. The lowest price was: $35.69.
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)).