New Digital Indicator Air Pressure Gauge. LED light dispalay , knowing the oil level status real-time. The front cover is made of stainless steel,It can be used for a long time even in an acid-base or humid environment. The harness connector has a snap to a secure connection between the meter and the harness, it is still reliable in applications where vibration is strong. Fine waterproof structure design, waterproof and dustproof rating: IP67. Lasting working voltage: 9-32V, up to: 36V ( less than or equal to 1 minute) Working current less than or equal to 60mm Working temperature: -30~+75 Celsius Gauge diameter: 52mm / 2inch Colour: black Material: stainless steel Package Contents: 1 * Air Pressure Gauge 1 * Wiring harness 1 * Chinese and English manual 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.