Selfcontrol / NIT 600 D 50 / Nitrate and Nitrite Test – 50 test strips to measure nitrate and nitrite in liquids – easy, quick, accur

描述

50 test strips to measure nitrite (NO2) and nitrate (NO3) in liquids (aquarium, water, ....). Measure: Nitrite: 0, 0.5, 1, 5, 10, 25, ppm / Nitrate: 0, 10, 25, 50, 100, 250, 500, ppm