If your CO2 Gas Sensor no longer auto-IDs and is still under its 5-year warranty, you can return it to Vernier for inspection (see below). If it is a mechanical problem, it will be fixed at no charge under the warranty. If, however, it is determined that the problem was caused by water damage or some other misuse, repair is not covered under the warranty and may not even be possible.

CO2 Gas Sensors should be used in gas only. Do not place in water, and be careful when using it with yeast solutions that the foam does not touch the sensor.

To request that we inspect your sensor, please request a Return Merchandise Authorization at: