$38.99 – Wireless TPMS Tire Pressure Monitor Car Tire Pressure Monitoring System (Banggood, Aliexpress: Wireless TPMS Tire Pressure Monitor Car Tire Pressure Monitoring System Solar Charging Car Tire Pressure Sensor Real-Time Monitoring – Internal (the best price with coupon)).
You can get Wireless TPMS Tire Pressure Monitor Car Tire Pressure Monitoring System for $38.99 using coupon code (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
Latest coupon and price update (UTC):
Banggood ($38.99)
Banggood warehouse is located in China. I can’t find any active coupons for this product in Banggood. Good or bad price? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $29.48)
Link: Banggood product page
Price: $38.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGSCM11, BGAMMT03
(you can check these old coupons out, but these probably won’t 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
Here is price history (for all/most countries) for Wireless TPMS Tire Pressure Monitor Car Tire Pressure Monitoring System. The lowest price was: $26.99.
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)).