With a single battery, this model will perform approximately 4000 test cycles The Sealey TST/PG981 Digital Tyre Pressure Gauge has an easy to read LCD display that\'s calibrated in psi. A single lithium battery will run approximately 4000 test cycles. Features: Push-on type tyre pressure gauge with 8mm digit Easy read, LCD display calibrated in psi Pressure release valve A single lithium battery will run approximately 4000 test cycles Auto-off function with low battery indication Flexible leader hose with push-on chuck Specification: Description: Digital Tyre Pressure Gauge with Leader Hose & Push-on Chuck Accuracy: ±1.5% Full Scale Connector Length: Flexible 300mm Scale: 0-100psi Resolution: 0.5psi Operating Temperature: -10°C to 40°C Battery: 1 x CR2032 (Supplied)