Hi/Low User Select Controller with Mounting Kit. This Controller allows you to monitor and control pH and/or ORP levels.  It has a user selectable set point and a visual "Power Activated" LED notification light. Power to the controller box is turned on when the reading is Above or Below ( user selected ) the selected set point. This Controller is ideal for CO2 or ozone dosing. 

Features & Specifications:

• Professional pH/ORP controller 
• User selectable Hi/Low Set Point
• Manual 2 points calibration
• Visual LED alarm
• Supplied with 12 VDC adapter and mounting kit
• 1 power plug for CO2 dosing and 1 power plug for ozone dosing
• Double junction pH electrode with 2m cable and platinum ORP electrode (BNC connector)
• pH Range: 0 to 14.0 pH
• ORP Range: +/- 1000 mV
• pH Resolution: 0.01 pH
• ORP Resolution: +/- 1 mV
• pH Accuracy: +/- 0.2 pH
• ORP Accuracy: +/- 5 mV
• 2 selectable set-points for pH and ORP
• Supplied with: 12V DC Power Adapter, MW-SE-220 double junction pH electrode MW-MA921B/2 Platinum ORP electrode, 20 ml pH buffer solution, screwdriver for calibration and instructions.

Click here for information on how to condition the ORP probe before taking negative readings.