Answer :

Final answer:

The Gammon Aqua Glo water detector does not need to be calibrated as it uses a visual indicator to detect the presence of water.

Explanation:

The Gammon Aqua Glo water detector does not require calibration. Calibration is the process of adjusting the device to ensure accurate measurements. However, the Gammon Aqua Glo water detector uses a simple visual indicator to detect the presence of water, so there is no need for calibration.

This water detector is designed to change color in the presence of water, indicating its detection. It does not rely on precise measurements or calibration for its operation.

In summary, the Gammon Aqua Glo water detector does not need to be calibrated as it uses a visual indicator to detect the presence of water.