diameter 10mm, Operating environment: -10℃-50℃ (14℉-122℉), Emission current: ≤10mA, Quiescent current: ≤5μA, Product Size: 77*49.5*18.8mm, Weight: 45g, Protocol: EV1527, Wireless frequency: 433.92MHz, this package doesn’t come with the battery., Battery: length 27mm, Support Battery: 12V 23A.
Just check coupons out (with price alert and history). What is 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 . Well, there is one coupon available right now.
Link: Banggood product page
1. ($21.67): 13f142
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): elec, BGVDay10%off, 0e7f33, FBCOUPON1, bGhOnEy10, BGSMOFF, BGSONOFF15, BGSONOFF16, BGSTHO15, BGHONEY2110, BGSHOM15, BGSHE15, 6GSGIT
(probably won’t work, but you can try them out)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – 5Pcs SONOFF DW1 433Mhz Door Window Sensor ($-3)
Price history and price alert
Here is price history (for all/most countries) for 5Pcs SONOFF DW1 433Mhz Door Window Sensor [EU/UK]. The lowest price was: $17.84.
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)).