average measurement: gas Sensor Type: Silicon Semiconductor Sensor precision: +/- 1% F.S temperature error: +/- 1.5% F.S pressure limit: 1.5 the full range of working pressure working temperature: 0 ~ 45 Celsius Storage temperature: -10 ~ 75 Celsius dimensions: 64mm diameter, 27mm thickness, (including rubber sheath diameter 72mm, thickness 35mm) connection pressure: G1 / 4 : 3.0VDC (2 * 1.5V 7 battery powered) display unit: Psi, Bar, Kgf / cm2, MPa Display: 2.5 inch 4 digits, LCD display, the right side of the display mains power battery pressure range: 3-200 Psi color: black + silver Material: plastic + metal Package Contents: 1 * Pressure gauge Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.