JGST-101 school uniform retroreflective coefficient tester

【Scope of application】
The retroreflective sign measuring instrument is also called the retroreflective coefficient measuring (determining) instrument for reflective school uniforms in primary and secondary schools. It is a special instrument used to measure the retroreflective coefficient (R') of traffic on reflective school uniforms.
【Related standards】
GB/T 28468-2012 traffic safety reflective school uniforms for primary and secondary school students