$12.99 – Tuya Zigbee Smart Knob Scene Switch Dimmer (Banggood, Aliexpress: Tuya Zigbe Smart Konb Scene Switch Dimmer Button Knob Controller Home Automation Intelligent DIY Switch Support Home Assistant (the best price with coupon)).
$12.99 – that is current price with coupon for Tuya Zigbee Smart Knob Scene Switch Dimmer (in Banggood). Just check coupons out (with price alert and history). Let’s see what best price is ATM.
Latest coupon and price update (UTC):
Banggood ($12.99)
Banggood warehouse is located in China. There are no coupons available at this moment in Banggood. I think you want to know if the price is good. Hmmm, price is higher than average (which is $12.49 right now), so better set price alert down below…
Link: Banggood product page
Price: $12.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
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.
Price history and price alert
Do you need price history chart (for all/most countries) for Tuya Zigbee Smart Knob Scene Switch Dimmer? There we go. The lowest price was: $11.99.
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)).