You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
Back-up Battery: 3.7V/500mAh Lithium battery, Standby Current: <80uA, GSM Frequency: 850/900/1800/1900MHZ, Wireless Frequency: 433MHZ EV1527, Working temperature: 0~55 ℃, Input Voltage: DC5V/1A(micro USB jack), Working Current: <120mA, Siren output: <500mA
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. Too bad there’s no coupon right now in Banggood. Uhm… There’s no price history (in my database) for this product right now.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG810942, TTBLACK5
(there’s a little possibility that old coupon will work)
Price history and price alert
Well, you won’t see price history chart, coz we have only 1 database record for this item (and price was $49.99).
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)).