(Click to see larger image) The SwitchOver? protects cell cultures, tissue cultures, and embryos in your CO₂ incubators by monitoring the pressure in your CO₂ cylinder and ensuring that the supply does not run out. Instead, when the active cylinder is nearly empty it will automatically switch your incubator to a new, full backup cylinder. It is simple to use: attach two regulated CO₂ cylinders to the two inputs, and your incubator(s) to the output, plug it in, you are all set. Bright LEDs indicate the pressure status of each CO₂ tank. When one is nearly empty, the SwitchOver? switches to the other gas cylinder and beeps to alert you that it's time to change out the empty cylinder. Resetting the system silences the warning. If both tanks are empty, a long continuous alarm is sounded.

Our unique system continues to source CO₂ to your incubator even if it loses power, and it remembers which tank it was using last when power becomes available.

It has 1/4-inch (6 mm) OD tube quick connect fittings for its input and output, so it fits perfectly between our CO₂ Regulator and our DigiTherm? CO₂ Incubator.

Additionally, the SwitchOver? can be used equally well with inert gasses such as nitrogen, argon, and helium to prevent you from running out of these gasses during the course of your research. This includes Gas chromatography and/or mass spectroscopy (GC/MS) applications, anaerobic incubators, and other applications where the uninterrupted, unmonitored, continuous flow of inert gasses is required.

Here is a view of the SwitchOver's back panel: