The Sill Moisture Meter

No, this tool is entirely mechanical and does not require batteries. It generates its own power through the interaction between the metal probe and the soil.

Yes, it is designed for both environments. The 20cm probe is long enough to reach the root zones of most standard houseplants and outdoor garden plants.

For the most accurate pH reading, ensure the soil is moist before inserting the probe. If the soil is too dry, the meter may not register a reading, so water the soil slightly and wait a few minutes before testing.

Yes, you should wipe the probe clean with a soft cloth after each use. This prevents soil buildup and corrosion, ensuring the sensor remains accurate for future readings.

It works best in standard potting mixes and garden soil. It may not provide accurate readings in loose, airy substrates like pure sphagnum moss or perlite, as these materials do not make sufficient contact with the probe.

The 3-in-1 meter measures soil moisture, pH levels, and light exposure, offering a comprehensive look at your plant's environment. The basic option is strictly for monitoring moisture levels if you are only concerned about watering habits.