Jingbaodun Acid-Base Water Quality Tester Industrial Tap Water Testing Pen pH Meter Digital High-Precision pH Tester for Home Use

Battery compartment with dual spring design for stability

Low power consumption with auto power-off after 5 minutes of inactivity

High contrast LCD with backlight for easy reading in low light

Dual display for simultaneous pH and temperature readings

Data hold function for locking readings

Automatic temperature compensation for accurate pH measurement

Temperature sensor directly contacts solution for fast and precise readings

Manual three-point calibration with standard buffer powders at pH 4.00, 6.86, and 9.18

1. Insert probe into 6.86 buffer solution, press and hold HOLD/CAL button until screen flashes, release and wait for "End" display.

2. Repeat for 4.00 and 9.18 buffer solutions by toggling calibration points with HOLD/CAL button.

Calibration powders included

ON/OFF switch

°C/°F temperature unit switch

Data hold function

Auto power-off after 5 minutes of no operation to extend battery life

Waterproof probe with immersion lines indicating minimum and maximum immersion depth

Low impedance sensitive bulb sensor formed by high-temperature molding for durability and accuracy

Compact and lightweight design

150 mm length x 29.5 mm width x 16.5 mm thickness

Approximately 70 ± 5 grams (including batteries)

Transparent PP box with instruction manual, calibration powders, and protective CPE bag

Suitable for daily drinking water testing, swimming pools, aquariums, hydroponics, and fish farming

Ensure probe immersion depth is between minimum and maximum immersion lines for accurate readings

Supports quick response and simple operation with four-step measurement process

Stable battery compartment design ensures reliable power supply during use