... FHO3502 OTDR Machine General Description: FHO 3502 is a protable ODTR machine which is integrated with features of multi-function ... , high precision, compact structure and etc. Compared to other protable otdr, the performance of this OTDR is also very advanced ... Easy to use—button operation, intelligent analyse♦ Compact design and protable— shock-proof, dirt-proof, moisture-proof, integrated with 6.4 ...