3 in 1 pH/EC/Temperature Tester High Accuracy Digital Meter 0.01 Resolution 0-14pH Water Quality Range Automatic Calibration for Aquariums Technical Data: Measuring Range: pH: 0.00-14.00 pH EC: 0-19990 μS/cm Resolution: 0.01 pH; 1 μS/cm; 0.1 ℃; 0.1 °F Accuracy: pH: ±0.01 pH; EC: ±2%; Temperature: ±0.5 ℃ Temperature Range: 0.1-60.0 ℃; 32.0-140.0 °F Automatic Shutdown: 5 minutes Dimensions: 7.2 x 1.45 x 1.45 inches Net Weight: 2.82 ounces Product Features: Accurate and Reliable: Designed for high accuracy with a high-quality titanium alloy probe. Automatic temperature compensation (ATC) ensures consistent and accurate readings across varying temperatures. Easy and Instant: Simply turn on the pH meter and gently stir in water. Stabilized readings appear on the LCD display within seconds. Automatically powers off after 5 minutes of inactivity to conserve battery life. Hold Function and Auto-Off: Freeze the measurement reading on display for easy viewing. Auto-off function helps extend battery life when not in use. Wide Application: Compact and portable design makes it ideal for home, laboratory, aquariums, swimming pools, spas, hydroponics, water quality testing, food, beverage, wine, and beer applications. Package Includes: 1 x pH Meter 1 x User Manual 3 x Buffer pH Powders