Marine Checker High Concentration Nitrate HI782 1 unit

Measures nitrate in seawater. With the simple operation of one button, the concentration (amount) of nitrate is displayed digitally. Even beginners can use it with confidence. Reliable digital display for peace of mind, no visual inspection required Amazing cost performance for a digital measuring instrument Palm-sized for easy carrying and storage Values ​​can be verified using a standard solution set (sold separately) (Checker HC series does not have a calibration function) Measurement range: 0.0 to 75.0 ppm Resolution: 0.1 ppm Accuracy: ±2.0ppm ±5% of measured value @25℃ Measurement method: Zinc reduction method External environment: 0 to 50°C, relative humidity 95% or less (no condensation) Light source: LED (525 nm) Light receiving part: Silicon photocell Power supply: 1 AAA alkaline battery Auto power off: after 10 minutes of non-use Size: Length 86.0 x Width 61.0 x Thickness 37.5mm Weight: 64g