Detailed introduction to Tire gauge(SO-TP013):

Now without back lights
Display: LCD Digital display, automatic On/Off
Accuracy: +/- 2% (Full Scale)
Battery: 2 Pieces button cell (PGA76)
Life Time: 3 years warranty of 1500 Hours warranty.
Switched Unit: Psi, Bar, KPa
Auto display the maximum pressure value
Display in increments of 0.5 Psi between 0 to 99.5 Psi
Battery life more longer, Not need to charge batteries
Gauge Diameter 2.0" ( 50mm)
Adopt high accuracy Gauges from Sonoma Industrial