US$ 29.99
use 2-3 teaspoons per gallon
It also works with Alexa and Google Assistant for voice control
ensuring the healthiest possible water for your plants and crops
or other systems
ActiveAir Hygro-Thermometer Commercial use 2-3 teaspoons per gallonYou'll find multiple uses for and multiple places to put this Active Air hygro thermometer. Check the large number LCD display from a distance, and move it around with you as you go about your gardening tasks. The hygro thermometer's readings are extremely accurate. Prop it up on your workspace, close to your plants, or wall mount it for hands free hanging readings.
US$ 29.99
US$ 34.99
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US$ 433.00
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US$ 294.50