See pH, EC and temperature in one dip, every feedThe Bluelab Combo Meter is a handheld tester that reads pH, conductivity and solution temperature from a single dip, built for growers who want a straight answer on what is actually in the reservoir. It replaces separate pH and EC pens with one accurate meter that holds calibration feed after feed.Key Benefits Three readings in one probe: pH, conductivity (EC, CF, ppm 500 or ppm 700) and temperature. Factory-calibrated conductivity: no EC calibration needed, just rinse and test. Simple 2-point pH calibration against pH 4.0 and 7.0, with a 30-day reminder built in. Automatic temperature compensation keeps EC and pH accurate as the reservoir warms and cools. Bright backlit display that reads easily in a dim tent or under coloured LEDs. 5-year meter warranty backing long-term reliability. Catching pH drift and nutrient lockout before it costs a cropA small pH swing outside the ideal band locks out iron, calcium and magnesium, showing as slow growth, yellowing leaves and weak roots despite a full-strength feed. Testing only occasionally means the damage is done before you spot it; checking pH and EC at every change and top-up catches drift while it is still an easy fix.How to Use Dip the probe into the nutrient solution or runoff and read all three values off the display. Calibrate pH roughly every 30 days using pH 4.0 and 7.0 solution; the meter prompts you when due. Rinse the probe in clean water after each use. Store with the cap on and the sponge moist, as letting the probe dry out causes drifting readings. Test at every feed and after topping up, not just at mix time. Technical Specifications Measures: pH, conductivity and temperature pH range: 0.0-14.0, resolution 0.1, accuracy +/-0.1 Conductivity range: 0.0-9.9 EC / 0-99 CF / ppm 500 (TDS) 0-4950 / ppm 700 0-6930 Temperature range: 0-50C (32-122F) Calibration: 2-point pH (4.0 and 7.0) with 30-day reminder; conductivity factory-set Display: backlit LCD Power: 2 x AAA batteries Warranty: 5-year meter (pH probe covered separately)
