Scale Accuracy: ±1levels”” / Line of Sight WIFI Transmission 20m / WIFI Frequency 2.4GHZ / Maximum Transmission Power 0.5mW / Battery Life Minimum 12 months for the transmitter / Transmission Range 100m in the Open Area / Temperature Accuracy ±1℃ / Transmission Frequency 433mHz / LCD Dimension(LxW) 170x125mm / Transmission Interval 16s / Light 0-200，000Lux; Accuracy: ±15% / Humidity Accuracy ±1℃ / Rain Accuracy “”<15mm: ±1mm, Transmitter: 3×AAA Alkaline Bafteries(Not Included), 15mm~9999mm: ±7％"" / Outdoor Temperaturerange -40℃~+60℃ / Rain Volume Display 0-9999mm; Resolution: 0.3mm Rain Volume<1000mm; 1mm Rain Volume>1000mm / Frame Dimension(LxWxH) 215x22x158mm / Type of Modulation ASK / WIFI Standard 802.11b/g/n / Humldity Range 10%~99%（1％ Resolution) / lndoor Temperaturerange 0℃~+60℃ / Power Consumption “”Receiver: 3x AAA Alkaline Batteries(Not Included), 10m/s～56m/s（±10％）”” / Pressure 3000~1100 hpa; ±3hpa / Wind Speed 0-50m／s / UV “”From UVB to UVA / 1 to 15+ Index, Power Adaptor: 5V／500mA”” / Wind Direction Accuracy 8 Points”, “Wind Speed Accuracy “”2m/s～10m/s (±3m/s).
Price history, coupons and price alert are available on this page. 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 
. This is new product in my database, so I don’t know if this price is good.
Link: Banggood product page
1. ($149.99): BGe51a22
2. ($159.99): BGef60a9
3. ($174.79): hoNEYbGdeAlS
4. ($178.59): BG00c906
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGTYSE898, BG10OFFAFF1, BGTYST898, BGTYGQ898, BGTYOB898, BANGGOODSD, BGTYOU898, BGSP898, BGUdb48, BGTYYB898, BGUbf43, BGTYPF898, BGXN898, BGAlerabat1, Terence, Tabby20, 2203ActiesNL, BGf40178, BG1efeb0, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, BG466561, pROMo8cuPoN, BGf83a1e, BGbc1d5c, BGde1ecf, BGJUNEGSG9, BGHUXC002, BGRSUNAIR, BGJUNIS98, BG8ReviTrage, Cuponation9, BG3309a6, BG52bb06, BGb5875b, BG8OFFCOUPON, TTBLACK5
(you can check these old coupons out, but these probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – 7 in 1 Professional WiFi Weather Station ($-3)
Price history and price alert
It doesn’t make sense to generate price history chart, because there is one price record which is: $129.99.
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)).