more about us ,u can view: the way of contact : Q wechat :+8618020763272 skype :lgxwzb@ our page in linkedin/company/xiamenzhichengautomationtechnologyco.ltd/ The Signet 2839-1V(D) to 2842-1V(D) Conductivity/ Resistivity Electrodes are available in four cell constants from 0.01 to 10.0 cm-1, and are suitable for a wide variety of applications from high purity water quality monitoring to weak acids and bases. 316 SS electrode surface finishes are controlled in a precision bead blasting operation to ensure measurement accuracy and repeatability. The PVDF insulator and process connections are injection over-molded to minimize variance between electrodes. Double threaded connections in either ? in. NPT or ISO 7/1-R 3/4 enable quick and easy installation in submersible or in-line configurations. Transmitter integral mounting kit and junction boxes are available as accessories. A Certificate of Calibration is included with all 28391-V(D) to 2842-1V(D) Conductivity/Resistivity Electrodes. The electrodes are calibrated to meet ± 2% accuracy. Electrodes can be shipped back to the GF Signet factory for recertification. Mfr. Part No. Code Cell Constant Connection Thread Size(s) Cable Length 3-2839-1V 159 001 810 0.01 cm-1 Dual threaded ? inch NPT 4.6 m (15 ft) 3-2839-1VD 159 001 811 0.01 cm-1 Dual threaded ISO 7/1-R 3/4 4.6 m (15 ft) 3-2840-1V 159 001 812 0.1 cm-1 Dual threaded ? inch NPT 4.6 m (15 ft) Agent +GF+ George Fischer Signet PVDF Conductivity Electrodes 3-2841-1VD #159001815 3-2840-1VD 159 001 813 0.1 cm-1 Dual threaded ISO 7/1-R 3/4 4.6 m (15 ft) 3-2841-1V 159 001 814 1.0 cm-1 Dual threaded ? inch NPT 4.6 m (15 ft) 3-2841-1VD 159 001 815 1.0 cm-1 Dual threaded ISO 7/1-R 3/4 4.6 m (15 ft) 3-2842-1V 159 001 816 10 cm-1 Dual threaded ? inch NPT 4.6 m (15 ft) 3-2842-1VD 159 001 817 10 cm-1 Dual threaded ISO 7/1-R 3/4 4.6 m (15 ft) Accessories and Replacement Parts 3-2850.101-1 159 001 392 3-2850.101-2 159 001 393 3-2850.101-3 159 001 394 3-2850.101-4 159 001 395 3-2850.101-5 159 001 396 3-2850-61 159 001 400 3-2850-62 159 001 401 3-8052 159 000 188 5523-0322 159 000 761 3-8050-1 159 000 753