On-Line Ph Controller 1.LCD display 2.100 ~ 240 VAC 50/60Hz 3. ... .pH ORP Accuracy 0.03pH, 2mV .PH6109 Series PH ORP Controller CHEMINS INSTRUMENT CO., LTD. TEL: +865358381357 FAX: +865358381357 ADDR: Puzhao ... (option), Alkali-proof type (option)Salt bridge typeTEFLON, Ceramics (option)Integrated temperature sensor (Option)Pt100, Pt1000, 10K, 2.252KJacket materialPPS (polyphenylene ...