Single / Dual chiteshi extinction ratio tester inogona yakazvimirira kuyedza polarization extinction ratio, optical power test, digital zeroing, digital calibration, manual kana otomatiki renji sarudzo, ine USB (RS232) interface, yepamusoro komputa software inogona kuyedza, kurekodha uye kuongorora data, uye inogona nyore kugadzira otomatiki bvunzo system. Inoshandiswa zvakanyanya mumidziyo yekutaurirana yemaziso, optical fiber, optical passive zvishandiso uye optical inoshanda midziyo yekuyedza, yakafara simba renji, yakakwirira bvunzo kurongeka, inodhura-inoshanda, kuvimbika kwakanaka.