Material ABS + PC, Voltage 5V, Body color black, Size 50 * 50 * 28mm/1.97*1.97*1.10″, Receiver frequency 433.92MHz, Working temperature range -20℃~+75℃, Pressure alarm value 0.3-6.2bar (5-90psi), Receiving sensitivity 110-110dBm.
Just check coupons out (with price alert and history). What is best price?
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 and price update (UTC):
Banggood
Banggood warehouse is located in China. There is one coupon available! Pretty cool, huh?
Link: Banggood product page
1. ($23.75): BGSCM75
this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): BGd68773, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, BGAUTO22, BGdcbfa8, BG8ReviTrage, Cuponation9, BGaf3161
(these coupons are old, so probably won’t work)
Price history and price alert
Do you need price history chart (for all/most countries) for Waterproof Motorcycle TPMS USB Solar Motorbike System? There we go. 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)).