Active Air Indoor-Outdoor Thermometer w/Hygrometer calicum Each system includes a programmable

Each system includes a programmable controller that is capable of efficient 0-100% PWM dimming

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Active Air Indoor-Outdoor Thermometer w/Hygrometer calicum Each system includes a programmableActive Air's indoor outdoor thermometer gives you more. Made of sturdy materials to stand up to the climate of your indoor grow room, this essential tool features a large display to read the current temperature and humidity levels. A remote probe allows you to sample two temperatures at once. Record the high and low points for both temperature and humidity. 3 meter sensor for temperature reading only Relative humidity sensor located on side of unit