$144.89 – that is current price with coupon for CS7 Smart Door Lock 30x240mm (in Banggood). Price history, coupons and price alert are available on this page. Do you want to know what the best price is?
CS7 Smart Door Lock with 30*240mm Lock Body 3D Face Recognition Security Camera Monitor Intelligent Fingerprint Password Biometric Electronic Key Unlock Doorlock
Latest coupon code price check (UTC time):
Banggood ($144.89)
Banggood warehouse is located in China. There are no coupons for this product in Banggood. Low/high price? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $95.49)
Link: Banggood product page
Price: $144.89
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGREUPCS7D, BGRJU7SCS7
(these codes were not working in latest coupon update, 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 CS7 Smart Door Lock 30x240mm.
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)).