The Bluelab Guardian Monitor Wi-Fi continuously monitors the key parameters of pH, EC and temperature in a nutrient reservoir with no need for manual measurements and spot checks. Any fluctuations are instantly visible on the Guardian Monitor’s large backlit LED display and issues can be solved as and when they happen. Real time data and historic reporting are also available via Bluelab’s Edenic app on your Smartphone, Tablet or PC, and the unit is completely controllable remotely. Conductivity and temperature units can be set to the user’s preference. Discreet visual alarms can be set for the grower’s preferred parameter ranges to indicate whenever a parameter falls out of range. The water-resistant unit is easy to wall-mount or hang. It has two probes on 2m leads; a combined conductivity and temperature probe which requires no user calibration (the conductivity reading being automatically compensated for temperature), and a double-junction pH probe (replaceable when necessary) which calibrates at the push of a button. LED calibration indicators remind the user when recalibration is due. Powered from the mains by a universal power adaptor.