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

ODC organic Super Concentrated - New 1.2 fl oz bottle for trees, gardens, orchards, nurseries, greenhouse, & lawns. Made from aquatic materials - shellfish - natural source of (N). MAKES 150 gallons of ready to use solution. 5x more concentrated.

How to use the Leaf Sensor Rev3 for all plants. Know when to water. Easy to use. Measures water levels using a digital multimeter or data logger. Precision Irrigation Monitor when used with these devices. Click to BUY.

Leaf Sensor Rev4 w/clip. GREAT price! It knows when to water. Wire insert into 3-wire connection. Precision Irrigation Monitor. Hurry while supplies last.

BEYOND All Natural Plant Amendment™ 16 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.