Feature: 1. CLEAR READING: Panel readout is simple, convenient and clear for you to read values, fast and convenient to use 2. ACRYLIC MATERIAL: Made of transparent acrylic material, light and sturdy, suitable for long term use, not easy to damage 3. MEASURE, CONTROL AND ADJUST: The instrument can be used to measure and adjust the flow rate and control of gas medium 4. HIGHLY PRECISE: Measuring range is wide from 100‑1000ml/min, accuracy grade is 4%, you can use with confidence 5. EXCELLENT PERFORMANCE: Made with fine workmanship, possess compact appearance and dependable performance, can make sure durability and stability Specification: Item Type: Gas Flow Meter Applicable Medium: Gas Type: Panel Type Measuring Range: 100-1000ml/min Accuracy Class: 4% Application: Mainly used for measuring and controlling the flow rate of gas medium. Package List: 1 x Gas Flow Meter Note: Pay attention to correct operating.