Specifications: 1) Pressure range: 5.0~99.9PSI 0.34~6.88Bar 2) Powered by 3V R2032 permanent lithium battery 3) Multi-unit display: PSI, Bar 4) Working condition: temperature 0~40 C 5) Deposited temperature:-20~70 C 6) High accuracy: 1%Psi(under 5-100Psi measurement range and 25 C temperature) 7) Resolution rate: 1PSI, 8) Manual/Automatic power off function 9) Portable and practical