$6.39 – Diamter: 58mm/2.28in, Material: metal, Display: digital, Four kind of unit: PSI KPa Bar Kg/cm2, Product name: LCD Tire Pressure Gauge, Interior Battery: 2xCR2032, Measure scope: 0-200PSI, Main color: black, Fitment: universal for most vehicle;such as car /truck /van /motorcycle etc., Working temperate: -20°C to 80°C.
$6.39 – that is current price with coupon for 0-200Psi Digital LCD Tire Air Pressure Gauge (in Banggood). Price history, coupons and price alert are available on this page. Let’s see what best price is ATM.
Latest price update (UTC time):
Banggood ($6.39)
Banggood warehouse is located in China. Is it a reasonable price for this item? Well, according to CouponsFromChina database this price is the best in history (10 records). I found coupon for you. Check this out.
Link: Banggood product page
Price without coupon: $7.99
1. ($6.39): BGb1acd8
you should apply the coupon in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
This is the best price ever noted in my database!
Old coupons (from the oldest to the newest): BGSCM11, BGe8a594, BGc1ab77, BG599541, BG6bd1b4, BG16217e, BGeb34c8, BGCAR639, BGAMMT03, BGad2fc9, BGe5d8db, BGea768f, BG5c10a8, BG56a872
(these coupons are old, so probably won’t work)
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
Here is price history (for all/most countries) for 0-200Psi Digital LCD Tire Air Pressure Gauge. The lowest price was: $6.39.
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)).