Description WE ARE NZ COMPANY. THIS ITEM IS STOCKED IN AUCKLAND. Product Code:PH Tester This is a Digital pH meter pen that is fully re-useable and provides accurate digital readings every time. This is ideal for users that need to take multiple measurements on a regular basis and is a more efficient and environmentally friendly than traditional litmus papers. NOTE: Please calibrate with the buffer solution before use. FEATURES: Fully re-usable Lightweight and portable Provides accurate readings once calibrated Small but durable design An ideal instrument for aquarium, fishing industry, swimming pool, school laboratory, food & beverage etc. More efficient and environmentally friendly than traditional litmus papers SPECIFICATIONS: Range: 0.0 - 14.0 pH Resolution: 0.1 pH Accuracy: ±0.1 pH Operating Temperature: 0 - 50°C Relative Humidity: