Description: Quality Material: This Combustible Gas Analyzer is made from quality ABS and PC materials, making it sturdy, and long time use.Easy to Use: Equipped with a digital multicolor indicator light display, this Gas Tester alerts you with an audible alarm when the gas concentration exceeds the set range, making it easy to use.Multifunctional: Our Smoke CO2 Analyzer comes with temperature and humidity sensors that help you measure the humidity and temperature in your environment.Wide Application: With its compact structure and lightweight design, this Temperature Hygrometer Device is easy to carry around and ideal for use in homes, indoors, or other professional settings, as well as commercial space.Practical Gift: This Gas Detection tool makes a practical gift for professionals, family members, or friends. Specification: Material: ABS and PC Size Chart: 7cmx3cmx7.5cm/2.76inchx1.18inchx2.95inch Package Includes: 1 Combustible Gas Analyzer Note: Please allow slightly errors 1-2cm differences due to manual measurement.