I have just checked coupons. The lowest price I could get is 339.99 USD for WANGLU IPC-9800ADHS-Plus CCTV (in Banggood). Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
Latest price update (UTC time):
Banggood (339.99 USD)
Banggood warehouse is located in China. There are no active coupons for this product, but the price is pretty low isn’t it? You probably want to know if this is a good price. This price is higher than average price (327.32 USD) for this item.
Link: Banggood product page
Price: 339.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGAUGUST8, BGCAPITALOS8, BGSPRING8OFF
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Aliexpress
Click here… to search for WANGLU IPC-9800ADHS-Plus CCTV IP&Analog Camera Tester on Aliexpress
Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for WANGLU IPC-9800ADHS-Plus CCTV IP&Analog Camera Tester.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).