DUAL SCALE: This pressure gauge adopted the double scale design, very clear. The measurement range is 0-60psi / 0-4bar. METAL CASE: The case is made of metal, providing good protection for the inner part. WIDE APPLICATIONS: This pressure gauge is suitable for materials which are not corrosive to brass, such as air, water, fuel. EASY OPERATION: Bottom mount, no additional tools can be installed easily. CLEARLY IDENTIFIED: Clear number for easy reading. This pressure gauge is convenient to use. Features: This pressure gauge is a dual scale dial instrument. Its measurement range is 0-60psi, 0-4bar. Wide applications: suitable for air, water, oil, air and other materials that are not corrosive to brass. Super mini size, portable and convenient to carry. This pressure gauge is a great pressure measuring tool with stable performance. Note: Please allow some difference in 1-3mm due to manual measurement. Due to the different display and different light, the picture may not reflect the actual color of the item. Thank you for your understanding.