Online Instruments Portable Instruments Bestsellers wellkonix wellkonix Conductivity Transmitter, wellkonixConductivity TransmitterConductivity Transmitter, wellkonixConductivity Transmitter 0 out of 5 (0) Direct change over to Conductivity (µScm ) TDS measurement (ppm ) Automatic temperature compensation 4-20 mA Isolated Output SKU: n/a Conductivity sensor, wellkonixConductivity sensorConductivity sensor, wellkonixConductivity sensor 0 out of 5 (0) Range: 0.01 electrode: 0.02~20.00us/cm 0.1 electrode: 0.2~200.0us/cm 1.0 electrode: 2~2000us/cm 10.0 electrode: 0.02~20ms/cm SKU: n/a PH Sensor, PH Transmitter, wellkonixPH Transmitter and SensorPH Sensor, PH Transmitter, wellkonixPH Transmitter and Sensor 0 out of 5 (0) Measure range: pH: -2-16 pH, ±0.02pH; ORP: -1999 ~1999mV, ±0.1%FS Input Resistance: ≥10~12Ω Power supply: 220V±10%,50Hz/60Hz Output: 4-20mA, RS485, Modbus-RTU, Relay SKU: n/a