You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
Power: 2200W, Voltage: 220V, Material: ABS, Model: VXTJ01, Waterproof Rating: IPX4, Temperature Adjustment Range: 5~35°C, Working Environment Temperature: -20~45°C
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. Well, there is one coupon available right now.
Link: Banggood product page
1. ($312.67): BG00c906
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGVMPRO, PICODICOM, BGVMIHT, BGVOMHT, bGpAnDacHeCk, BGVIMHT, Wholesale20, BGVMBET, BGHOMEAPP, BGTT10, bGhOnEy10, 7bcdf9, BGSS10%SW, bgshOOp10, BGHome15%, BGVIMELH, BGHOMEAPP13, BGVMBEH, BGVIMHTPRO, BGHOMEA13, BGVMHT11, BGVIMHTE, BGVIMEHT, BGVXTJ01CZ, BGVIMPRO12, BGCuponation10, BGVIMPROCZ, BGCFME18, BG10OFFAFF, BGwhielabel, BG10OFFAFF1, BGCZPRO, BG91e03e, BGPTA03, 6GSGIT, BG8dc540, 00c906
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Xiaomi VIOMI Internet Baseboard Electric Heater Pro [EU] ($-3)
Price history and price alert
Do you need price history chart (for all/most countries) for Xiaomi VIOMI Internet Baseboard Electric Heater Pro? There we go.
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)).