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Sensor 4310W Conductivity/Temp Wireless^ MultiLab IDS 4310W Conductivity and Temperature Wireless sensor, Wireless conductivity and temperature, epoxy body, 4-graphite electrodes, digital probe, K= 0.475 cm-1, Minimum Immersion Depth: 36 mm, Cell Constant: 0.475 cm-1 +/-1.5 %