BLUELAB COMBO METER PLUS.
The BLUELAB COMBO METER PLUS is a brilliantly simple three-in-one portable solution, the Combo Meter Plus takes care of all three nutrient uptake fundamentals simultaneously. Measures pH, conductivity and temperature in nutrient reservoirs, run-off and water supply and pH in substrates and media.
The easy-to-use, lightweight handheld meter 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 Bluelab Leap pH Probe with toughened spear tip which calibrates at the push of a button. A calibration indicator reminds the user when recalibration is due. Its large format backlit display will show conductivity in your preferred units and temperature in either Celsius or Fahrenheit. Powered by 2 x AAA alkaline batteries (included), with a power-saving auto shut-down.