Pen Type Digital Hydroponic Water pH Thermometer
Pen Type Digital Hydroponic Water pH Meter, Purity Tester.
Description: This inexpensive Digital pH meter measures pH from 0.0 to 14.0 in steps of 0.1 pH and is accurate to ±0.2 pH. This digital pen style pH meter is an ideal instrument for aquarium, fishing industry, swimming pool, school laboratory, food & beverage etc.