Latest update shows that Motorcycle Solar Charge Tyre Temperature Alarm Sensor costs $19.99 (in Banggood). Just check coupons out (with price alert and history). Let’s see what best price is ATM.
Motorcycle Solar Charge Tyre Temperature Alarm Sensor Tire Pressure Monitoring System Colorful Display Wireless TPMS
Latest coupon and price update (UTC):
Banggood ($19.99)
Banggood warehouse is located in China. I can’t find any active coupons for this product in Banggood. The question is – is it a good price? Good price! It’s lower than average one ($21.55)!
Link: Banggood product page
Price: $19.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BG18cdc1, BGSCM11, BGAMMT03
(there’s a little possibility that old coupon will work)
Aliexpress
There’re some similar (or not) items on Aliexpress
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 Motorcycle Solar Charge Tyre Temperature Alarm Sensor? 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)).