Test Meters & Solutions » BlueLab » Bluelab Guardian Monitor

In just one glance it measures all three critical parameters for successful growth pH, conductivity and temperature.

• Adjustable brightness display.
• Large easy to read, Plant Safe green LED displays.
• Selectable values for conductivity and temperature.
• Simple push button pH calibration system.
• No calibration required for conductivity and temperature.
• Silent alarm for both high and low settings.
• Settings retained when power lost (non-volatile memory).
• Temperature compensation.
• An international power supply.
• Water resistant design.
• 2 year warranty (6 months on probe).

You may also be interested in the Blue Lab Combo Meter, Blue Lab pH Probe Clean Calibration Kit and the Blue Lab Nutrient Probe Cleaning Kit.