Bluelab pH Monitor Model: 716443 Click to enlarge

Product Description:
Continuously takes readings from nutrient solution • Simple manual pH calibration • 2 meter probe length • Calibration solutions supplied • International BNC socket for pH probe connection • Flashing LED alarm quickly seen in a dark growing area • Ready to mount on wall or surface • Large 13mm (1/2”) digital display for easy reading • Long battery life (18 months from alkaline batteries) • Serial interface socket for connection to the Bluelab Maestro™ • 3 AA batteries • 2 Year Bluelab Guarantee Retails for $189.95 and up