Features:

Backlit LCD display
Calibration optional
Successful calibration indicator
Hold function
Low battery warning
Fully waterproof
Auto off function
Automatic temperature compensation

Units: EC / 500 ppm / 700 ppm / °C / °F
Range: 0.0 - 10.0 EC / 0 - 5000 ppm (500 ppm) / 0 -7000 ppm (700 ppm) 8 0 - 50 °C / 32 - 122 °F
Resolution: 0.1 EC / 10 ppm (500 ppm) / 10 ppm (700 ppm) / 1°C / 1°F
Precision @ 25°C: ±0.1 EC (@ 2.77 EC) / ±50 ppm (500 ppm) (@1385 ppm) / ±70 ppm (700 ppm) (@1940 ppm) / ±1°C / ±2°F
Guarantee: 12 months