Technical specifications:
The min/max range of measurement for nitrate concentration:0 – 9999 mg/kg;
Measurement time: ～3 sec;
Measurement margin of error: < 10%;
Power source:Li-Ion battery;
Battery charge current: <450 mА;
Additional power source - USB;
USB charge current: 450 mA;
Power voltage range: 3.7V;
Usage time up to 8 hours**;
Dimensions: 122 х 52 х14 mm;
Weight - 85g.
TFT color display resolution: 320 х 240;
Operating temperature: -20 – +50 °С.

NOTE:
*Increasing the number of observations leads to a greater accuracy of results.
**Usage time specified for default device settings and battery capacity of 720 mAh.