ActiveAir Hygro-Thermometer Commercial light sensor with day/night photocell

light sensor with day/night photocell Compatibility TrolMaster Hydro-X (HCS-1) — NOT Hydro-X Pro or Plus Connector RJ12 with included 16 ft cable and T-splitter Operating Range 32-122 F

ensuring the healthiest possible water for your plants and crops

use 2-3 teaspoons per gallon

It also works with Alexa and Google Assistant for voice control

or other systems

ActiveAir Hygro-Thermometer Commercial light sensor with day/night photocellYou'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.