GroStar GS3 EC Pen complete-systems the Max-Fan can save hundreds

the Max-Fan can save hundreds of dollars every year

By installing the in-line Monitor with mixing chambe

Battery type: 1 x AAA alkaline

shake and let sit for 30-120 minutes

soil fertility

GroStar GS3 EC Pen complete-systems the Max-Fan can save hundredsAI11030 GroStar GS3 EC PPM Temp Pen Lab grade instruments designed specifically for growers! Includes: 2. 77 EC calibration solution (50 ml bottle) Measures conductivity EC, PPM (500), PPM (700) and temperature Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance Titanium alloy sensor designed for high accuracy EC measurement Easy to use design and fast calibration adjustment. Large 3 color backlit