Leaf Sensor Rev4- Digital Meter - Calibration Combo pak II for leaf sensor voltage readings - no external battery required. Special cable connects directly to a leaf sensor. Ready use. Includes Leaf Sensor, Digital Meter, Calibration std card and cable

AgriHouse's NASA sponsored Leaf Sensor Rev4 for all plants. It knows when to water. Water resistant low power device. Easy to use. Measures plant water levels using a digital multimeter or data logger for precision irrigation control.

The original aeroponic system with closed-loop reservoir, hi-psi pump, micro-filtration, germination accessories & more!

Calibration Standard Card for calibration the Leaf Sensors -contains 1 ea. graduated calibrated micro-thin disks. Track voltage / inches (mm).

BEYOND All Natural Plant Amendment™ 1.2 fl oz Concentrate bottle - makes 30 gal. Overrides stress caused by environmental factors & deficiencies. Proven by NASA & organic growers since 1997. Meets USDA Organic Standard. Contains nitrogen trace elements.