What's in the box:

Backlight PH Test Pen High Precision Portable PH Detecting Instrument Fish Tank PH Tester (Standard)

Portable water quality analyzer, high definition display screen, manual one key automatic calibration mode, the top adopts nice sealing process to prevent energy consumption in wet environment, accurate measurement, simple and quick.

Features:
Pen cover design, easy to carry, not easy to damage, no loss of sensitivity.
Portable water quality analyzer, home use, hospital natatorium, water plant laboratory, aquaculture.
High definition display screen, quick and simple accurate measurement, large digital display more clearly.
Manual one key automatic calibration mode, solve the problem that the long storage time of automatic calibration can not be accurately calibrated.
The top adopts nice sealing process to prevent energy consumption in wet environment.
PH pen is glass electrode probe, heat and cold resistant, high sensitivity.

Specifications:
Type: PH Detector Pen
Material: ABS
Color: Blue & White
Cell: 2 * LR44 Button Cell, 3V 240mAh (included)
Measure Range: 0-14pH
Tempreture Range: 0-45
Probe: Glass Electrode
Accuracy: 0.01
Error: 0.05
Package Weigth: 135g / 4.76ounces
Package Size: 180 * 90 * 18mm / 7.09 * 3.54 * 0.71in

Packing List:
1 * PH Test Pen
3 * Corrective Powder