Automate CO2 dosing to ensure your plants get
the right amount for respiration. Just plug a 115V
solenoid valve (not included) into the socket
supplied for dosing and your CO2 supply to the
solenoid. The included pH electrode measures
0 to 14 pH (± .2 pH accuracy) and has manual
2-point calibration. Controller has a set point
range of 5.5 to 9.5 pH and a visual LED alarm that
activates when the reading goes above the set
point. Uses a 115V/60 Hz to 12VDC adapter
(included) and measures 31/4" x 51/2" x 11/2".
Two-year warranty on the base unit, six months
on the probe. Ship weight is 2 lbs.