Handheld pH Meter
Model: PH-903A
Manufacturer: ZD instrument - China
Specifications︰
Range: 0.00—14.00 pH,
Resolution: 0.01 pH,
Accuracy: ≤±0.03pH,
Temp. C: 5—50℃, (ATC)
Calibration: Two-point at 6.86pH and 4.01pH (or 7.0pH and 4.01pH)
Features: Automatic switch-off function: After 10 minutes without pushing buttons, the meter will be switched off automatically.
Low battery: As long as there is any display, the accuracy is guaranteed.
Battery Life: DC 4x 1.5V
Flug: Fixed electrode
Advantages︰ low-power consumption
Automatic switch-off function
Soil EC Tester
Model No.︰ZD-EC
Brand Name: ZD INSTRUMENT - CHINA
Application: to accurately determine the EC content in the soil. - Plants in general can live under the influence of the EC parameter, which is the electrical conductivity or EC (Electricity Conductivity) of the soil. In principle, the saltier the soil solution, the higher the ion concentration (including cations - positive ions and anions - negative ions) in the solution.