AI21040 - GroStar GS4 pH/EC/500ppm/700ppm & Temp (5-in-1) Combo PenLab grade instruments designed specifically for growers!Includes: "¢ 2-year warranty (instrument)"¢ 1-year warranty (probe)"¢ pH 7 & pH4 calibration solution (50ml bottle each)"¢ 2.77 EC calibration solution (50ml bottle)"¢ KCL storage solution (10ml bottle)"¢ Lanyard and user manualFeatures:"¢ Measures pH, conductivity (EC and 500ppm/700ppm) and temperature (5-in-1)"¢ Compatible with all GroStar replacement probes: pH, Soil pH, EC and PH/EC Combo"¢ Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance"¢ Easy-to-use design and fast calibration adjustment"¢ Double junction replaceable probe, so you dont have to discard the entire pen when the probe reaches its end of life"¢ Large 3-color backlit screen gives you clear information"¢ Durable structure, IP67 waterproof rating"¢ Powered by AAA batteries with auto off function"¢ Automatic temperature compensation
