Description EC measures the level of nutrients in your system and gives you a measurement of the quantity of available nutrients, allowing you to use this information to add nutrients to your desired level. pH is the measure of the acidity of a system and determines how plants and other organisms interact with different nutrients. Accurate and Reliable: Equipped with premium quality titanium alloy probe, and reliable Automatic Temperature Compensation (ATC) which ensures readings are always accurate at various temperatures. Automatic Calibration: Featuring three-point calibration, the meter can automatically identify calibration solutions of pH 4.00, pH 6.86 and pH 9.18. Included 3-pack pH buffer solution (4.00, 6.86 and 9.18). Recommended to calibrate every 4-6 weeks for accurate measurements. EC calibration solution not included. Waterproof Hold Function & Auto-off function: Holds measurement for easy viewing after taking reading from tank. Multifunction Digital Meter green backlit display ensures you can read the measuring results under any lighting conditions. Turns off meter after 5 minutes of non-use to conserve batteries. Specification Measuring range: pH:0.00-14.00 pH; EC: 0-19990μS/cm Resolution: 0.01 pH; 1μS/cm; 0.1℃; 0.1°F Accuracy: pH: +/-0.01 pH; EC: +/-2%; Temp: 0.5℃ Batteries: 3 * 1.5V LR44 button cell Temp.: 0.1-60.0℃; 32.0-140.0°F Calibration: pH: three points automatic calibration (6.86 & 4.00 & 9.18pH); EC: 1413μS/cm Auto shut off: 5 Minutes Dimensions: 7.2*1.45*1.45 inches 6 month manufacturer's warranty
