OPACIMETER; MEASURING RANGE: 0.01 TO 500MG/M3; OPERATING TEMPERATURE: -25 TO 55GRC; RATED VOLTAGE: 110 TO 230V; CURRENT TYPE: CA; SIGNAL OUTPUT: 4-20MA; 1SPDT; PROCESS CONNECTION: THREADED; PROCESS CONNECTION DIAMETER: 1.1/2IN; THREAD TYPE: BSP; ELECTRICAL CONNECTION: THREADED; ELECTRICAL CONNECTION DIAMETER: 1/4IN; COMMUNICATION PROTOCOL: RS232 RS485; BODY MATERIAL: STAINLESS STEEL POLYTETRAFLUOROETHYLENE; PROTECTION GRADE: IP65; DUST MONITOR 210 PCME