# Macnaught Flow Meters > Precision oval gear flow measurement technology and positive displacement meters for industrial, chemical, and fuel applications. ## Main Product Categories - [Flow Meters](https://flowmeters.macnaught.com/collections/industrial-flow-meters): Complete range of Macnaught's industrial flow meters designed for high accuracy. - [Oval Flow Meters](https://flowmeters.macnaught.com/products/oval-gear-meter):Robust positive displacement meters utilizing oval gear technology to measure fluids regardless of viscosity. [Diesel Flow Meters](https://flowmeters.macnaught.com/products/diesel-flow-meter): Specialized measurement solutions optimized for the viscosity and flow characteristics of diesel fuel and light oils. - [FCM Fuel Flow Meters](https://flowmeters.macnaught.com/products/fuel-flow-meter):Heavy-duty fuel consumption meters designed for engine monitoring, boilers, and high-volume fuel transfer. - [Hazard Area Flowmeter](https://flowmeters.macnaught.com/pages/hazard-area-flowmeter-measurement): Intrinsically safe and explosion-proof metering solutions certified for use in volatile or hazardous environments. ## Resources & Company Info - [Instruction Manuals](https://flowmeters.macnaught.com/pages/flow-meter-instruction-manuals): Comprehensive technical guides, installation procedures, and maintenance documentation for all meter series. - [About](https://flowmeters.macnaught.com/pages/about-macnaught): Overview of Macnaught’s history, engineering heritage, and commitment to Australian-made quality. - [Contact Us](https://flowmeters.macnaught.com/pages/contact): Direct channel for technical support, general inquiries, and global office locations. - [Request a Quote](https://flowmeters.macnaught.com/pages/request-for-quote): Submission form to receive tailored pricing and technical specifications for specific industrial projects.