1 fl oz ODC™ Home & Garden Colloidal chitosan solution for trees & plants. Induce them to defend against pine beetles. Treats 10 to 30 trees. Natural & Organic. Easy to use. Bedding plants, flowers, roses, cannabis & vegetables. Order now limited supply!

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

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.

Leaf Sensor manuals and tips for soldering and connecting sensors to digital multimeters and data loggers. Includes irrigation sensor articles, manuals, hints and more for best practices. Ready for download.

Digital Leaf Sensor Meter for leaf sensor voltage readings - no external battery required. Special cable connects directly to a leaf sensor. Ready use. Take leaf sensor readings - connector/cable included.