Sensorex 3-in-1 combination electrodes are excellent choices for applications requiring pH, reference, and automatic temperature compensation (ATC). The 3-in-1 electrode operates like three separate electrodes, at a value price, you would pay for only one electrode.
These electrodes are designed to retrofit the original factory electrodes supplied with your meter but at substantial savings. Built into the body is an ATC element compatible with your meter. Combine the ATC element with the Sensorex durable and proven epoxy body pH electrode and you will get a premium quality direct fit: a 3-in-1 replacement pH electrode.