You can create price alert here, copy coupons and view price history. You probably want to know what is the best price?
Motion detection alert: 20m, 20M night vision, IP65 Waterproof, Package Contents: 4x AHD Camera, 1x Digital Video Recorder, 1x Remote Controller (Battery Not Included), 2x Power Adapter, 1x 1 to 4 Power-split Cable, 1x USB Mouse, 4x Video Cable, 5x Screw Kits, 4x Mounting Bracket, 1x English User Manual
Aliexpress
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Here are coupons that you can use.
Latest price update (UTC time):
Price history and price alert
Do you need price history chart (for all/most countries) for Houzetek SN-NVK-8003W10 Four Channel Security Kit? There we go.
Price records source(s): Gearbest
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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)).