Wearable plant Leaf Sensor for all plants. Know when to water. Easy to use. Measures water levels using a digital multimeter or Arduino data logger. Precision Irrigation Monitor when used with these devices. NEW v4 upgrades includes 10' connector cable.

ODC organic Super Concentrated - New 18 fl oz bottle - 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.

Complete CD-ROM (1&2 vol. on one single CD-ROM). Newly updated with exclusive video interviews and aeroponic growing know-how not found on www.aeroponics.com

NASA developed Aeroponic Substrate offer the fastest germination of almost any size of seed. Polystyrene re-usable. Size: 15" wide x 100' long x 0.002" thick

Leaf Sensor Rev4 and Digital Meter pak for leaf sensor voltage readings - no external battery required. Special cable connects directly to a leaf sensor. Ready use. Includes Leaf Sensor, Digital Meter and cable & CD-ROM