$39.99 – 10KHz-1.5GHz MF HF VHF UHF Digital NanoVNA-H Vector Network Antenna Analyzer Support 32G SD Card.
I have checked all old coupons and price is $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. Let’s see what best price is ATM.
Latest coupon code price check (UTC time):
Banggood ($39.99)
Banggood warehouse is located in China. As you can see I didn’t find any active coupon for this product right now… The question is – is it a good price? From what I can see this price is higher than average price ($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
(probably won’t work, but you can try them out)
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 10KHz-1.5GHz MF HF VHF UHF Digital NanoVNA-H Vector Antenna Analyzer is here. 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)).