These products are no longer available. Information is presented for reference only.
Go Wireless® pH (GW-PH), discontinued
Specifications and User Guide
Go Wireless® Electrode Amplifier (GW-EA), discontinued
Spec...
Because pH calibrations will drift over time, periodically creating a new custom calibration provides more accurate readings. Vernier pH sensors have the ability to create a custom calibration and store it in the sensor's memory. By default, this sto...
Mold growth normally appears as small blackish or grayish specks in the electrode storage solution, and it can also stick to the walls of the bottle and the sensor tip. It does not affect the accuracy or the response of the sensor, but it should be c...
Test it
First, test the pH sensor in a standard buffer solution of known pH. It should give a stable reading in a buffer solution. Many users try to test a pH sensor in water not realizing there are not enough ions present to get a stable readi...
First, we need to determine if there really is mold inside the shaft of the sensor--it might be a precipitate rather than mold. To test this, place the sensor in ~150 mL of warm water and let it sit in the warm water for 15-20 minutes. If the amount ...
There is 0.23 g of silver metal and 0.002 mg/L AgCl in our pH sensors. These are both under the federal limits of waste disposal (but please check your state and local regulations as well). Therefore, there is no hazardous chemical in the sensor limi...
If the gel (liquid) inside the body of the electrode is "low" (i.e., less than half the length of the body of the electrode), the sensor may still work properly. However, it may need to be calibrated each time before use (How do I calibrate a sensor ...
Vernier pH sensors are not designed to be stored dry, but our sensors are pretty tough and the pH sensors can survive being stored dry for a short period of time. Please do the following to test a pH sensor:
Start the data-collection program on y...