Bluelab ppm Pen

  • The Bluelab ppm Pen measures conductivity and temperature and ensures plants are receiving the proper amounts of nutrients.
  • It's fully waterproof and also features a backlit LCD display, optional calibration and a successful calibration indicator, hold function, low-battery warning, auto-off function and automatic temperature compensation.
  • It operates on a scale of 500 or 700ppm and has a range of 0 to 5,000 ppm or 0 to 7,000 ppm, with an accuracy of ’Ç? 50 ppm or ’Ç? 70 ppm.
  • Requires one AAA battery and has a one-year warranty. Battery included.

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