According to my DB the lowest price is $196.99 for 3MP Wireless WiFi CCTV Video Surveillance Camera System (in Banggood). Price history, coupons and price alert are available on this page. Let’s see what best price is ATM.
3MP Wireless WiFi CCTV Video Surveillance Camera System Outdoor Audio Street Security Protection IP Kit Hiseeu Motion Alarm
Latest coupon and price update (UTC):
Banggood ($196.99)
Banggood warehouse is located in China. Coupons for 3MP Wireless WiFi CCTV Video Surveillance Camera System? Nope, there’re no coupons in Banggood. You probably want to know if this is a good price. Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $177.07)
Link: Banggood product page
Price: $196.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGSaleAD, BG589b2e, BG4c1315, BGAUGUST8, BGCAPITALOS8, BGCOUPERT8, BG8FORMULAMX
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Aliexpress
There’re some similar (or not) items 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 3MP Wireless WiFi CCTV Video Surveillance Camera System.
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)).