Quick view ESSENTIALS EC METER PEN TYPE The ESSENTIALS EC Meter gives direct accurate readings of nutrient solution and is very helpful in mixing nutrient concentrate with water. All readings are automatically temperature compensated. It... $148.50 Add to Cart Compare
Quick view ESSENTIALS PH METER PEN TYPE The ESSENTIALS pH Meter is truly the most rugged glass type pH tester around. It is water and drop resistant. Even if the tester is accidentally dropped into the water, it will remain afloat. This... $148.50 Add to Cart Compare
