I have checked all old coupons and price is $11.99 for JJA-CM1200 1/3 CMOS 1200TVL Mini FPV Camera 2.1mm (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
JJA-CM1200 1/3 CMOS 1200TVL Mini FPV Camera 2.1mm Lens 16: 9 PAL/NTSC Black/Red For RC Drone – Black PAL
Latest coupon code price check (UTC time):
Banggood ($11.99)
Banggood warehouse is located in China. I don’t think there is an active coupon right now – at least in my database. Is it expensive? Wow! That’s the lowest price in CouponsFromChina database!
Link: Banggood product page
Price: $11.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Aliexpress
I could not find it on Aliexpress. 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 JJA-CM1200 1/3 CMOS 1200TVL Mini FPV Camera 2.1mm.
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)).