Bluetooth Hygrometer nutrient-combo Replace the pack when the

Replace the pack when the indicator signals depletion or when the pack becomes rigid and hard

Ducting Size: 12 in

eliminating dry pockets and aiding in nutrient absorption and uptake

Formulated to meet the very specific nutritional demands of Japanese Maples & Dogwoods as well for many other low nitrogen-requiring trees and plants

Bluetooth Hygrometer nutrient-combo Replace the pack when theWirelessly display, log and transfer readings including: humidity, wet bulb, dew point and air temperature. Sper Scientifics Bluetooth Hygrometer Meter is small, light, and simple to use. Displays humidity, wet bulb, dew point and air temperature in C or F on the meters large 1 backlit display. Features minimum and maximum hold (peak) and data hold functions. The meter offers the convenience of Bluetooth for wireless communication with free iOS and