Backpack specially designed for educators and students that contains test kits for the analysis of the seven main soil parameters: nitrogen, phosphorus, potassium, pH, EC, TDS and temperature.

  • 7 soil quality parameters

  • In situ measurements

  • Contains teaching material

 The HI3896BP is supplied with all reagents and equipment necessary to perform each analysis, and all reagents and solutions are available individually as they are sold out.


Nitrogen specifications
Range trace, low, medium, high
Method Ned
Test number 25
CTK type colorimetric
Phosphor specifications
Distance trace, low, medium, high
Method ascorbic acid
Test number 25
CTK type colorimetric
Potassium specifications
Range trace, low, medium, high
Method tetraphenylborate
Test number 25
CTK type turbidimetric
COMBO HI98129 specifications
pH range 0.00 to 14.00
pH resolution 0.01 pH
PH accuracy (@ 25ºC) ± 0.05 pH
pH calibration Automatic, one or two points with solutions (pH 4.01 / 7.01 / 10.01 or 4.01 / 6.86 / 9.18)
EC Rank 0 to 3999 µS/cm
EC Resolution 1 ?S / cm
CE precision (@ 25ºC) ± 2% FS
EC Calibration automatic, one point at 1413 µS/cm
TDS Range 0 to 2000 mg/L (ppm)
TDS Resolution 1 mg/l (ppm)
TDS Accuracy (@ 25ºC) ± 2% FS
TDS Calibration automatic, one point at 1382 mg/L (ppm)
Temperature range 0.0 to 60.0°C
Temperature resolution 0.1°C
Temperature accuracy ± 0.5°C
Thermometer specifications
Range (°C) -50.0 at 220°C
Resolution (°C) 0.1°C (-50.0 to 199.9°C); 1°C (200 to 220°C)
Accuracy (°C) ±0.3°C (-20 to 90°C); ±0.4% FS (outdoor)
Probe stainless steel probe; 125mm x diameter 5mm
General specifications
CTK type Titration, Colorimetric, Multiparameter
Order information The HI3896BP backpack includes the agriculture test kit, HI98129 Combo meter (pH / EC / TDS / temperature), HI145 digital thermometer, set of 6 field test procedures, teacher resource CD, teacher guide and backpack.
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