Specifications:
- Measuring range: 0.1-14 pH
- Resolution: 0.1 PH(Can be measured after the decimal digit)
- Batteries: 3x 1.5V LR44 button cell (AG13)(Not included because of the airplane limits!)
- Adjustment: trimmer potentiometer
- Automatic temperature compensation: 0-50°C (32-122°F) 
- Dimensions: 152mm×30mm×15mm
- Weight: 53g

How to use:
1: Turn on pH meter, Clean the electrode in distill water
2: Immerse the electrode in pH 6.86 standard buffer solution
3: Reset with screwdriver, until the display digital is 6.86pH.
Then complete pH 6.86 calibration
4: Clean the electrode in distill water and dry it, immerse the
electrode in Ph 4.00 standard buffer solution
5: Reset with screwdriver, until the display digital is 4.00pH.
Then complete pH 4.00 calibration
6: Clean electrode and dry it, put the meter into PH 9.18
standard buffer solution. Check if reading is correct between
9.17-9.19pH

Package includes:
- 1 x pH Meter
- 1 x Retail box
- 1 x Adjustment screwdriver 
- 2 x Calibration packets
- 1 x User's manual

Warming identification <ACT>
Warming has identified with ACT, better accuracy, as the temperature changes will not produce an error
Without the warming of ACT without identification, as the temperature difference generates a corresponding error