YSI MultiLab IDS 4120 pH and Temperature Sensor
pH and temperature, plastic, 3 mol KCl, digital, double junction probe, 1.5 meter (~5 ft) cable, refillable reference.
The IDS sensors automatically store their unique serial number and calibration data. In addition, they also digitally process the measurement signal. The IDS sensors can be moved from instrument to instrument and maintain their calibration data and transmit that information to the new instrument.