Bluelab® Guardian Monitor type-hid-fixture This powerful combination actively prevents

This powerful combination actively prevents nutrient leaching from your grow medium

this formula ensures your plants can efficiently absorb essential nutrients

It contains potassium and 2% Soluble Silicon to reduce stress caused by heat

This controller has a built in timer that controls watering times and flood duration

tear and puncture resistant

Bluelab® Guardian Monitor type-hid-fixture This powerful combination actively preventsAdjustable 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 Bluelab Guarantee (6 months on