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Overview and Specifications:

pH Range: 3.5-9.0
Probe Length: 8.2’’
9 Light Levels: LOW-, LOW, LOW+, NOR-, NOR, NOR+, HGH-, HGH, HGH+
5 Moisture Levels: DRY+, DRY, NOR, WET, WET+
Temperature Range: 16-122°F (-9~+50°C)
Power Supply: 9V battery

Humidity: It’s the amount of water vapor in the air relative to the maximum amount of water vapor that the air can hold at a certain temperature. The ideal humidity range for most healthy plant growth is 40-60%

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