Product Size: 77*49.5*18.8mm, Weight: 45g, Emission current: ≤10mA, Operating environment: -10℃-50℃ (14℉-122℉), diameter 10mm, Support Battery: 12V 23A, Wireless frequency: 433.92MHz, Quiescent current: ≤5μA, Protocol: EV1527, this package doesn’t come with the battery., Battery: length 27mm.
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 and price update (UTC):
Banggood
Banggood warehouse is located in Europe . There is one coupon available! Pretty cool, huh?
Link: Banggood product page
1. ($13.91): BGSmart6
apply code in your basket (cart) after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): elec, 502C6B, e2bcea, BG15Gadgets, SONOFF15, BGBFCR01, 2020CNY, BGVDay10%off, bGhOnEy10, BGTT10, BGSMOFF, BGSONOFF15, BGSAMRTH, BGELIG0920, BgcLuBofErtA10, BGSONOFF16, 13f142, BGSHE15, 6GSGIT, ADMITAD2212
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – SONOFF DW1 Door Window Sensor ($-3)
Price history and price alert
Check out price history chart (for all/most countries) for SONOFF DW1 Door Window Sensor [EU/UK]. The lowest price was: $6.65.
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)).