WorkShop 85942RP Digital Tire Gauge, 100 PSI Easy-read LCD screen Pushbutton on/range selector Auto shut off saves battery power Non-slip ergonomic pistol grip design Specifications: Measurement ranges (3): PSI: 2-100 bar: 0.15-7 kappa: 15-700 Min. increment: 0.5 PSI Battery: one CR2032 3V lithium coin cell (included)