$139.99 – TinySA ULTRA Plus ZS406 Handheld Spectrum Analyzer 900MHz-5.4GHz 20dB LNA Module 3.98 inch IPS-TFT LCD 5000mAh Battery Portable Analyzer – Black.
ATM you can buy TinySA ULTRA Plus ZS406 Handheld Spectrum Analyzer 900MHz-5.4GHz 20dB for $139.99 (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Do you want to know what the best price is?
Latest coupon code price check (UTC time):
Banggood ($139.99)
Banggood warehouse is located in China. Isn’t it too expensive? Looks like this is great price. I didn’t track lower than that in CouponsFromChina database ever. There is one coupon right now! Check this out.
Link: Banggood product page
Price without coupon: $145.99
1. ($139.99): BG109d6e
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
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 Plus ZS406 Handheld Spectrum Analyzer 900MHz-5.4GHz 20dB. The lowest price was: $139.99.
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)).