ESCAM WNK404 4CH 720P Outdoor IR IP Camera Kit (Banggood, Aliexpress: Network video input broadbank 20Mbps, Video Resolution 720P, Network Video 4CH (the best price with coupon)).
Just check coupons out (with price alert and history). What is the best price?
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.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. You can get coupon down below.
Link: Banggood product page
1. ($191.07): BG589b2e
just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
Old coupons (from the oldest to the newest): BGESCAM12, BGE13, 7bcdf9, AFfbG10, BGVDay10%off, BGAFF10OFF, bGhOnEy10, BGdragonBoat, bgshOOp10, BgoFErTaSchInA10, BGELIG0920, BGTT10, BgcLuBofErtA10, BGCuponation10, BGHONEY2110, BGd0b05d, 00c906, BGSaleFeb8, BGSaleAD
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Price history (for all/most countries) for ESCAM WNK404 4CH 720P Outdoor IR IP Camera Kit is here. The lowest price was: $99.99.
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)).