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Here's a simple way to monitor when your potted plants need water and – just as important – when they don’t.

Left in the soil, the probe continuously checks the moisture content, alerting you to low levels with a blinking red LED.

As the soil dries, the rate of blinking increases to indicate urgency. The straight sensor is for most pots and planters; the curved sensor is designed for use in hanging baskets and other overhead containers.

The included button-cell battery is good for about 6 months of use; a double flash tells you when it requires replacement.

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