Introduction
Product Definition
The A52 water quality testing pen is a portable multi-parameter water quality testing instrument with the model name "A52 Jiabei Water Testing Pen". It can simultaneously measure TDS (Total Dissolved Solids), pH (acidity/alkalinity), EC (electrical conductivity), and temperature of water, making it suitable for rapid water quality testing in household drinking water, aquaculture, water treatment, and other scenarios.
Product Features
- Integrated pen-shaped design combining TDS, pH, EC, and temperature detection in one device.
- Automatic temperature compensation automatically corrects measurement results when temperature changes.
- Auto power-off after 5 minutes in standby to save battery power.
- Supports multi-point calibration for TDS/EC; pH supports 1-point, 2-point, and 3-point calibration.
- Simple operation with intuitive readings, suitable for daily water quality self-checks and routine water quality monitoring.
- Portable design, dimensions 188x37x37mm, weight approx. 90g, easy to carry.
Core Parameters
- TDS detection: Measuring range 1-19999 ppm, resolution 1 ppm, accuracy ±2%.
- pH detection: Measuring range 0.00-14.00, resolution 0.01 pH; accuracy ±0.1 pH with 1-point calibration, ±0.05 pH with 2/3-point calibration.
- EC detection: Measuring range 1-19999 μs/cm, resolution 1 μs/cm, accuracy ±2%.
- Temperature detection: Measuring range 0-60°C (32-140°F), resolution 0.1°C/0.1°F, accuracy ±0.5°C.
- Automatic temperature compensation: Supported.
- Auto power-off: Auto power-off after 5 minutes in standby.
- Calibration solutions: TDS/EC use 1413μs/cm standard solution; pH uses 6.86/4.00/9.18 standard solutions.
- Battery: 3 LR44 button cells, 1.5V each.
- Dimensions and weight: 188x37x37mm, approx. 90g.
Usage Scenarios
- Rapid water quality testing of household drinking water, barreled water, and water purifier output.
- Water quality monitoring for fish tanks and aquariums.
- Nutrient solution concentration testing for hydroponic plants.
- Routine water quality testing for swimming pools.
- Laboratory, teaching demonstration, and outdoor water quality spot checks.
FAQ
Q: What parameters can the A52 water quality testing pen measure?
It can measure TDS (Total Dissolved Solids), pH (acidity/alkalinity), EC (electrical conductivity), and temperature.
Q: How do I calibrate TDS/EC?
Calibrate using a 1413μs/cm standard solution.
Q: How do I calibrate pH?
Use 6.86, 4.00, and 9.18 standard solutions for 1-point, 2-point, or 3-point calibration.
Q: What is the difference between TDS and EC?
TDS represents the total amount of dissolved solids in water, measured in ppm; EC represents the electrical conductivity of water, measured in μs/cm. Both are used to reflect the ion content in water and usually have a corresponding relationship.
Q: How do I replace the batteries?
The device uses 3 LR44 button cells, 1.5V each. When battery power is low, open the battery compartment to replace them.
Q: Why does the testing pen auto power off?
The product automatically powers off after 5 minutes in standby to save battery power. Simply power it back on to continue use.
Q: What is the temperature measurement range?
0-60°C (32-140°F), supporting both Celsius and Fahrenheit display.
Q: What is the measurement accuracy?
TDS is ±2%, EC is ±2%, and temperature accuracy is ±0.5°C. pH accuracy is ±0.1 pH with 1-point calibration and ±0.05 pH with 2/3-point calibration.
Related Terms
- TDS: Total Dissolved Solids, measured in ppm.
- pH: Acidity/alkalinity, indicating the acidic or alkaline level of an aqueous solution, range 0.00-14.00.
- EC: Electrical Conductivity, measured in μs/cm.
- TEMP: Temperature, measured in °C or °F.
- ppm: parts per million, used to express TDS concentration.
- μs/cm: microsiemens per centimeter, unit of electrical conductivity.
- Automatic temperature compensation: A compensation mechanism that automatically adjusts measurement results based on water temperature changes.
- Standard solution: A solution with known concentration used for calibrating instruments.