Measures pH, conductivity / nutrient (EC, CF, ppm 500 and ppm 700) and temperature (°C, °F) Leap pH Probe, toughened spear tip for direct root zone, multimedia friendly, for measurements across a range of environments Lightweight and portable Large easy to read display Simple push button pH calibration Successful pH calibration indicator No calibration required for conductivity and temperature Replaceable double junction pH probe included Over range and under range indicators Low battery indicator 2 x AAA alkaline batteries included Auto off function