LAQUA Twin EC Meter

specifications : 

Model LAQUAtwin-NO3-11, LAQUAtwinNO3-11C, LAQUAtwin-NO3-11S
Target Nitrate ion (NO3
–
)
Measurement principle ISE method
Minimum sample volume More than 0.3 mL*1
Intended
use
LAQUAtwin-NO3-11:
General measurement
LAQUAtwin-NO3-11C:
Crop measurement
LAQUAtwin-NO3-11S:
Soil measurement
Measurement range
NO3: 6 to 9900 [unit: ppm or mg/L]
NO3-N: 0.7 to 1100 [unit: kg/10a]
NO3-N: 1.4 to 2200 [unit: ppm or mg/L]
Resolution
(default) Display range (NO3
–
): Resolution
6 to 99: 1
100 to 990: 10
1000 to 9900: 100
[unit: ppm or mg/L]
Calibration Up to 2 points
Default:
LAQUAtwin-NO3-11:
150 ppm and 2000 ppm
LAQUAtwin-NO3-11S:
30 ppm and 300 ppm
LAQUAtwin-NO3-11C:
300 ppm and 5000 ppm
Accuracy*2 ±10% of reading value
Waterproof IP67 (no failure when immersed in
water at a depth of 1 m for 30 min) *3
Display Custom (monochrome) digital LCD
with backlight
Operating
environment
Temperature: 5C to 40C
Humidity: 85% relative humidity or
less (no condensation)
Power CR2032 batteries (2)
Battery life Approx. 400 h continuous operation
(backlight off mode)*4
Material ABS epoxy (main material)
Dimensions 164  29  20 mm (excluding projections)
Mass Approx. 50 g (excluding batteries)