Operating temperature -10 – 450℃, Bluetooth specifications Bluetooth 5.0, Light sensing range 0~83 /000 lux, Product name Qingping motion and ambient light sensor, Detection angle 150° (7m) ~ 120°(within 2m), Detection distance 7m, Working humidity 0~99%, Product weight Main body: 33.8 g / base: 6.6 g, Product number CGPR1, Type of battery 2CR2450 button batteries.
You can create price alert here, copy coupons and view price history. Do you want to know what the best price is?
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 
. I don’t really know if this price is reasonable, coz there’s no price history in my DB.
Link: Banggood product page
1. ($31.84): Cuponation9
2. ($31.84): 9OFFSUMMER
3. ($32.19): hoNEYbGdeAlS
4. ($32.89): BG00c906
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): BGTYON647, BANGGOODSD, BGHUON647, BGUdb40, BGHUOL647, BGUbf35, BGPS647, 00c906, BGHUCJ14, pROMo8cuPoN, BGJUNEGSG9
(probably won’t work, but you can try them out)
Price history and price alert
Not enough data to show price history chart… $22.99 is the only recorded price. It was not cheaper than that since we have saved it in DB.
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)).