bluelab pH Pen, pH tester, measuring range: 0.0-14.0 pH, resolution: 0.1 pH, accuracy: +/- 0.1 pH

Features
• Measures pH and temperature
• Units selectable °C & °F
• Backlight
• Double pH electrodes
• Perfect calibration display
• Hold function
• Waterproof
• Automatic shutdown
• Automatic temperature compensation
• Incl. pH calibration solutions pH 7 (107565) and pH 4 (107564)

Technical data
• Units: pH, °C, °F
• Measuring range: 0.0 - 14.0 pH
• 0 - 50 °C / 32 - 122 °F
• Resolution 0.1 pH
• Accuracy: ± 0.1 pH at 25°C
• 3 pH calibration points -pH 4.7 and 10
• Incl. 1 x AAA batteries
!!! ATTENTION: ONLY USE CALIBRATION SOLUTIONS 107564 and 107565 !!!