Digital Integrated Sensor Module spl_hgc All Calibration data is stored

All Calibration data is stored

These don't look like the ones from the hydro store because they are double-junction

The Phantom Commercial DE Open Lighting System features state-of-the-art double-ended technology that uniformly delivers optimum PAR value over a broad footprint

flat surface pH probes typically used in chemical plants for process control

Designed for use with Hydrofarm and PARsource high frequency DE fixtures and ballasts

Digital Integrated Sensor Module spl_hgc All Calibration data is storedD. I. S. M Digital Integrated Sensor Module CO2, temperature, humidity, and light sensor. Comes standard with iPonic Series Temperature Humidity CO2 sensor High resolution light sensor 16 ft cord