WIFI: 802.11b/g/n, Low-voltage notification: ≤2.4V, Static Current: ≤35uA, Working Humidity: 95%RH ≤95%RH, Detecting Range: 20㎡, APP Name: Tuya, Working Temperature: -10-50℃, Installation Method: Ceiling Mounted, Alarm Current: ≤160mA, Alarm Sound Level: 70db/1m, Input Voltage: DC3V LR03.
You can create price alert here, copy coupons and view price history. You probably want to know what is the 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 price update (UTC time):
Banggood
Banggood warehouse is located in China. Only one coupon available!
Link: Banggood product page
1. ($22.57): BGSmart6
put item in your cart and apply coupon code there 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): BG73f9f9, BG4a7a54, ADMITAD2212
(there’s a little possibility that old coupon will work)
Price history and price alert
Price history (for all/most countries) for Earykong Smoke Alarm Fire Detector Sensor is here. The lowest price was: $19.99.
Price records source(s): Banggood
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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)).