2Pcs Tongou Tuya Wifi 35mm DIN RAIL Switch Intelligent Meter Circuit Breaker LED Energy Meter KWh Power Timer Relay APP Control with Metering and Prepaid Function Compatible with Alexa and Google Assistant for Voice Control.
Price history, coupons and price alert are available on this page. Let’s see what best price is ATM.
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. There is one great coupon!
Link: Banggood product page
1. ($56.99): BGMAI666
coupon code has to be applied in shop’s 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): BG869195, BGca0529
(probably won’t work, but you can try them out)
Price history and price alert
Do you need price history chart (for all/most countries) for 2Pcs Tongou Tuya Wifi 35mm DIN RAIL Switch Intelligent Meter Circuit Breaker? There we go. The lowest price was: $56.99.
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)).