Temperature unit Deg.C / Deg.F, Brand Name iMars, Charging method Solar + USB, Material PC, Transmission frequency 433.92MHz, Tire pressure monitoring range 0-3.5bar, Pressure unit psi / bar, Waterproof IP67, Chip Germany Infineon, Voltage 5V, Battery type 500mAh Li-ion batter.
Basically copy coupon, view price history or create e-mail price alert. Do you want to know what the best price is?
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 coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. I found coupon for you. Check this out.
Link: Banggood product page
1. ($35.19): BGSCM11
this code has to be applied in your 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): BG21eea4, BG7d9ae2, BG52bc3f, BGCAR639, BGad8e58
(probably won’t work, but you can try them out)
Price history and price alert
Check out price history chart (for all/most countries) for iMars Car Solar Tire Pressure Monitor System C200. The lowest price was: $21.99.
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)).