What the Bluelab Pro Controller Wi-Fi Holds to Setpoint Three parameters, and you can run one, two or all three. It reads pH across 0.0-14.0 at ±0.1 and conductivity from 0 to 5.0 EC at ±0.1. Temperature covers 0-50°C / 32-122°F. It then doses to bring each parameter back to the value you programmed. Dosing intervals are yours to tune against pump size, tank volume and stock dilution, which keeps a small tank from overshooting. It runs on a 100-240 VAC supply, so it is not fussy about the panel it lands next to. Every probe is removable and replaceable, on 2 m cables. Running an Automatic pH and EC Controller Without Getting Burned The safety logic is the part worth paying for. High and low alarms sit on each parameter. Internal lockouts stop nutrient dosing when a temperature alarm fires. An external terminal lets a flow switch kill all dosing when the pump is idle. Automatic lockouts also stop dosing outright if the unit detects a fault. Set your lockouts before your setpoints. The pH probe carries a calibration quality indicator, so you know when it is drifting rather than finding out through a crop. Two things to budget for. The controller does not include the dosing pumps, so a Peridoser or Solenoid is a separate line item. And the pH probe carries a 6 month guarantee against 2 years on the controller. A Bluelab Connect Stick is included. Key Features Controls pH, conductivity and temperature: Run one parameter or all three, each with its own high and low alarm and its own setpoint. Tunable dosing intervals: Match dose length to pump size, tank volume and stock dilution so a small reservoir does not overshoot. Layered safety lockouts: Internal, external and automatic fault lockouts stop dosing before a stuck pump becomes a dead crop. Replaceable probes on 2 m cables: pH connects by BNC, and every probe comes off individually rather than forcing a whole-unit swap. Bluelab Connect Stick included: Data logs and remote monitoring through Bluelab Connect without buying the stick separately. Technical Specifications Specification Value Controls pH, conductivity (EC), temperature pH Range / Accuracy 0.0 - 14.0 / ±0.1 @ 25°C Conductivity Range / Accuracy 0 - 5.0 EC / ±0.1 Temperature Range 0-50°C / 32-122°F Power Supply 100-240 VAC, 50/60 Hz, output 5 VDC 1.5 A Probes Removable pH (BNC), conductivity and temperature Probe Cable Length 2 m (6 ft) Connectivity Wi-Fi, Bluelab Connect (stick included) Dosing Compatibility Bluelab Peridoser and Solenoid dosing systems Controller Guarantee 2 years pH Probe Guarantee 6 months