Consumption: <5mA @Standby, Power Supply: 110/220VAC, Operation Temperature: -10~55℃, Sound Level(typical): 85dBA, Radio Frequency: 433Mhz, Volume Levels: 5(mute included), Selectable Melodies: 58, Expandable: up to 20 receivers. Basically copy coupon, view price history or create e-mail price alert. 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 Europe . There’s only 1 record in my database, so I have no idea if the price is OK.
Link: Banggood product page
1. ($4.99): BG8d771c
2. ($6.99): BG2ef758
you should apply the coupon in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGSMOFF, BGDGASG, BGSAMRTH, BGDB109, BgcLuBofErtA10, BG15SH12, BGAFF10OFF, BGSTHO15, BG9b699e
(these codes were not working in latest coupon update, but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – DIGOO DG-DB1 433MHz Wireless Doorbell ($-3)
Price history and price alert
It doesn’t make sense to generate price history chart, because there is one price record which is: $4.99.
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)).