The replacement EC probe for the Milwaukee MC310 or MC740 meter is the original Milwaukee spare piece. Two meters long cable designed to replace the electrode if the original is in poor condition or in case of breakage.
In order to replace the old probe with the new one, we need to turn off the meter.
Once turned off the meter the old probe is easily replaced with the new one. It is essential to perform the calibration procedure using the EC1413 calibration solution before using the meter again.