Bluelab Hydroponics Nutrient Solution pH, Electrical Conductivity and Temperature Measuring Pens with Calibration and Care Kit.

pH, electrical conductivity and temperature of culture solutions all play a pivotal role in driving optimal plant health in hydroponic cultivation. 
Conductivity indicates the total amount of dissolved nutrients present as ions in the nutritious solution. Potential hydrogen, pH, shows how acidic or alkaline the medium is, which determines nutrient absorption. Temperature affects plant growth rate and structure.
Measure the fundamentals with the pH pen and the conductivity pen, both of which also record temperature, to have reliable information on the fundamental parameters of your culture solution to accurately manoeuvre your hydroponic system towards growing success.

Product specifications:

• Bluelab pH and Temperature Pen. x 1
• Bluelab Conductivity Pen displays EC (Electrical Conductivity), CF (Conductivity Factor), TDS (Total Dissolved Solids) PPM 500 or PPM 700 in built measurement units and temperature readings in °C or °F, factory calibrated. x 1
• Bluelab Probe Care Kit with pH 4.0, pH 7.0 and KCl solution sachets to calibrate store your pH pen, 2.77 EC standard solution to test your conductivity open after cleaning plus probe cleaner and pen cleaning instruments. x 1
• Pens designed for nutrient reservoirs, they are waterproof and float in any solution.
  
• Bright and easy to read backlit display.
• Compact and convenient handheld design.
• Double junction pH pen probe, 2 point pH calibration with 30 day reminder.
• Automatic temperature compensation.
• Operating environment: 0°C to 50 °C or 32°F to 122°F.
• Measurement resolution: 0.1 EC, 1 CF, 10 ppm 500 (TDS scale), 10 ppm (700 ppm scale), 1°C/ 1°F 0.1 pH, 1°C/ 1°F.
• Measurement range: 0.0 to 10.0 EC, 0 to 100 CF, 0 to 5000 ppm 500 (TDS scale), 0 to 7000 ppm (700 ppm scale), 0°C to 50°C/ 32°F to 122°F 0.0 to 14.0 pH, 0°C to 50°C/ 32°F to 122°F.
  
• Measurement accuracy:  ± 0.1 EC, ± 1 CF, ± 50 ppm 500(TDS scale), ± 70 ppm (700 ppm scale), ± 1 ̊C/ ± 2 ̊F ± 0.1 pH, ± 1 ̊C/ ±2 ̊F.
• The pH pen requires two point calibration pH 7.0 and pH 4.0 or pH 10.0.
• The conductivity pen is ready to use out of the box, calibration is optional.
• Power: 1 x AAA alkaline battery.
• CE, FCC and RoHS compliance.
• Designed and built in New Zealand for growers.