Hanna Instruments Halo Gel Filled Bluetooth pH Electrode pumps-and-irrigation-supplies Compatible with your existing T5

Compatible with your existing T5 HO fluorescent fixture

Double-ended system delivers higher PAR value with incredible uniformity

Replacement Screen 150 Micron

Everything you need to grow fresh herbs all year

A work horse pump that will power your Evolution-RO1000™ to 80 psi and is compatible with other 1000-1500 GPD RO systems to boost them up to 150 psi

Hanna Instruments Halo Gel Filled Bluetooth pH Electrode pumps-and-irrigation-supplies Compatible with your existing T5Halo Gel Filled Bluetooth pH Electrode This Bluetooth enabled electrode turns your Apple or Android device into a full featured portable pH meter. HALO gives you the ability to measure, chart, record and share your data right from your phone. HALO enables the gardener to automate their pH and temperature logging efforts. This helps keep gardeners accountable and focused. You can stop relying on hand written data logs when you start using the HALO. pH