Lineba High Accuracy Portable PH Digital Meter Mini Digital Pen Type PH Meter（Pocket Size）

Specifications:
Model: HP-107
Measuring pH Range: 0.0 - 14.0 pH.
Resolution: 0.1 pH.
Accuracy: ±0.1 pH (20°C), ±0.2 pH.
Operating Temperature: 0 - 50°C (32-122°F).
Relative Humidity: <95%.
Life: approx.700hours of use.
Calibration: manual,1 point.
Power: 3 x 1.5V(AG-13 button battery)(included).
Size: 15.2cm x 2.8cm x 1.5cm.

Operation:
1.Remove the protective cap.
2.Do not be alarmed if white crystals appear around the cap.
3.This is normal whth PH electrodes and they dissolve when rinsed with water.
4.Turn the meter on sliding the swith on the cap.
5.Immerse into solution up to the max immersion level.
6.Stir gently and wait until the display stabilizes.
7.After use,switch off pH meter,use the water clean the electrode and replace the protective cap.
8.Do not use distilled or deionized water for storage purposes.
9.Large fluctucations in readings could be due to lack of calibration,dry electrode or rundown batteries.

Package Includes:
1 x Digital PH Meter Tester Pen Aquarium
1 x screw driver