**Probe type**: It's a low impedance glass sensitive bulb.
**Automatic recognition and calibration function**: This means it can do those things all by itself!
**Anti-corrosion housing**: The outside won't get damaged easily by stuff that could corrode it.
**Measuring range**: It can measure from 0 to 14.00 Ph.
**Resolution**: It can tell the difference in 0.01 PH.
**Error**: The mistake it might make is only 0.05 PH.
**Working temperature**: It works fine from 0 to 60 degrees Celsius.
**Dimensions**: It's 155*31*18mm in size.
**Battery**: It uses 2 x 1.5V batteries (LR44 button battery is included).
**Instructions for use of PH calibration powder**:
1. **Calibration powder**: It's a pH standard solid thing.
2. You can use it after adding some water.
3. It's good for calibrating any type of pH meter.
4. Each package can make 250ML of standard solution.
**Packing list**
1 x PH Meter
3 x calibration powder
1 x instruction manual