Usage Tips:Features: Keep track of your liquid levels with this fuel gauge gas caps. Made with plastic materials, it ensures durability and precise measurement with an error margin of less than 1mm. Shows the liquid level accurately, allowing users to monitor their storage in real time. Its easy installation makes it suitable for various types of tanks, making it a convenient choice for industrial, automotive, and marine professionals. Designed for maintenance personnel, machine operators, and managers in industries such as petroleum, transportation, and manufacturing, this gauge is a must have tool. Whether you are working on tanks, storage containers, or engines in the petroleum, transportation, or manufacturing sectors, this gauge provides real time monitoring of levels, ensuring efficient operations and preventing potential issues. Stay informed about your liquid levels with this reliable and easy to use gauge. Its high accuracy and wide application make it an essential tool for anyone in need of real time monitoring. Specifications: Material:Plastic Length:Approx.185mm/7.28',405mm/15.94' Note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Fuel Gauge Gas Cap