Go down and check coupons out. Remember to check price history if it is available. You probably want to know what is the best price?
Synchronization: Internal, Min. Latency: 8ms, Work Humidity: 20%~80%, Day/Night: Auto/Color/B&W/EXT, Image: 16: 9 & 4: 3 (changeable), Video Output: CVBS, WDR: Super WDR (HDR), Work Temperature: -20℃~+60℃, Weight: 8g (N.W.)/ 40.5g (G.W.), Language: ENG/FRANCE/RUS/SPA/PU/KOREA/CHN/JAPAN, Camera OSD: Separate OSD, Horizontal Resolution: 1200TVL, Dimensions: 19mm*19mm*19mm, Wide Power Input: DC 5-40V, Electronic Shutter: PAL: 1/50~100, 000, 000; NTSC: 1/60~100, DNR: 3-DNR, Min. Illumination: Starlight, S/N Ratio: >60dB (AGC OFF), TV System: NTSC & PAL (changeable), FOV: 180 Degree, Image Sensor: 1/1.8″ Inch starlight HDR sensor
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. Well, there is one coupon available right now.
Link: Banggood product page
1. ($28.23): Parts8
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): af2044, 502C6B, f8585f, f62884, 207154, MD15, BGratel, BGCR1, BGCE1, BGpaeicrk, BG1200TVL, 2019SPEDM, bgssaff9, BGCRCR, BGiParts, BGCCRR13, BGcad15, BGBFAFF2019, BGCITYADS2019, BGCL001, FBCOUPON1, bGhOnEy10, BGTT10, BGRATEL15, bgshOOp10, BGCADD28, BGBLACK22, BGCADD16, BGBLACK27, BGcxratel, 13f142, BGCuponation10, BGDAVIS
(I don’t think these’re gonna work, but you can try ’em out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Caddx Ratel FPV Camera [EU] ($-3)
Price history and price alert
Here is price history (for all/most countries) for Caddx Ratel FPV Camera.
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)).