Water pH Meter.
Field pH Meter.
Soil pH Meter.
Food pH Meter
Industrial pH Meter.
What is pH meter used for?
pH meter is an instrument used to measure acidity or alkalinity of a solution — also know as pH. pH is the unit of measure that describes the degree of acidity or alkalinity. It is measured on a scale of 0 to 14.
The quantitative information provided by the pH value expresses the degree of the activity of an acid or base in terms of hydrogen ion activity. The pH value of a substance is directly related to the ratio of the hydrogen ion [H+] and the hydroxyl ion [OH-] concentrations. If the H+ concentration is greater than OH-, the material is acidic; i.e., the pH value is less than 7. If the OH- concentration is greater than H+, the material is basic, with a pH value greater than 7. If equal amounts of H+ and OH- ions are present, the material is neutral, with a pH of 7. Acids and bases have free hydrogen and hydroxyl ions, respectively. The relationship between hydrogen ions and hydroxyl ions in a given solution is constant for a given set of conditions, either one can be determined by knowing the other.
Like: Soil pH Meter.
ECO Farm 3 In 1 Soil PH Meter Kit For Moisture
The perfect tool to test soil conditions (moisture/light/PH) with the ECO Farm tester. Simply insert the meter about 4–6 inches into the soil (2/3 of the probe) and read the scale. High precision and simple operation. The sensitive probe senses changes in the soil and transmits the details to the conductor, showing you the exact value. Ideal and necessary tool for gardeners, vegetable and fruit growers and all those who grow trees and grasses. Scientific data monitoring. Helps you control every detail and keep track of all changes about your plants. Keep your plants healthy with scientific data monitoring!
ECO Farm 4-in-1 Soil PH Tester Soil Moisture Sensor LCD Display For Household
The ECO Farm 4-in-1 Soil Tester conveniently tests soil pH, moisture, light and temperature! You can tell when it’s time to water by measuring the moisture, pH, and temperature of the soil, as well as the sunlight level of the plants. Designed to be lightweight and portable for easy portability, it is suitable for indoor and outdoor use, making it the ideal soil pH meter tool for home plants, gardens, lawns and farms. This soil tester features a large LCD screen for easy display of various readings and a green backlight that allows you to read parameters in dark conditions.
Water pH Meter:
ECO Farm High Precision 0.01 LCD Digital PH Value Test Pencil Meter
The ECO Farm Portable pH Meter is the ideal test kit for water, hydroponics and more. Remove the protective cap, immerse the pH tester electrode in the solution, and press the button to be tested. More convenient than litmus paper. The larger LCD screen allows for quick and accurate readings. With automatic temperature compensation (ATC). Adjust to water temperature and give a pH reading almost immediately. Lightweight and pocket sized for easy portability. Fast Response — The pH tester has a sensitive electrode sensor that takes only seconds to stabilize readings and derive results from them.
ECO Farm New 4 In 1 TDS PH Meter PH/TDS/EC/Temperature Meter Digital Quality Monitor Tester
ECO Farm New 4 In 1 TDS PH Meter PH/TDS/EC/Temperature Meter Digital Quality Monitor Tester High precision and fast response. Using a digital screen display with backlight, data reading is clearer and more convenient. The large LCD screen displays the results, with convenient reading and high precision. Suitable for water sources, hydroponics and other water systems.
ECO Farm 5 in 1 C-100 TDS /EC/ SALT/ S.G./ Digital Water Quality Temperature Monitor
ECO Farm 5 in 1 water quality meter can measure TDS/EC/S.G/sea water specific gravity/temperature. The measurement range is large and wide, which can measure the salinity of fresh water and sea salt. Portable TDS meters can be carried anywhere. Measurement range: 0 to 10000us/cm 10.01–19.99ms 20.1–400ms/cm, resolution: 1us/cm, 0.1ms/cm. Accuracy: ±2% of reading. TDS: Measurement range: 0–1000ppm, 1000ppm to 10000ppm, 10.1–200.0 PPT (automatic range selection), resolution: 1ppm.ters can be carried around, measure water quality, hydroponic environment, etc.
Frequently Asked Questions
Effects of Temperature on pH
Temperatures Above 25°C: temperature compensation lowers high pH and raises low pH, resulting in value closer to neutral. Temperatures Below 25°C: temperature compensation raises high pH (more basic) and lowers low pH (more acidic), resulting in values further away from neutral. Whether or not temperature compensation needs be used is a matter of the needed pH accuracy. For example, if the accuracy requirement is ±0.1 pH, at a pH of 6 and a temperature of 45°C (113°F), the error is 0.06, well within the accuracy requirements. On the other hand, with the same ±0.1 pH accuracy requirement, operating at pH 10 and 55°C (131°F) would give an error of 0.27 pH and compensation should be used.
When compensation is required, it can be done in one of two ways. If the temperature fluctuates, then an automatic compensator should be used. If the temperature is constant within several degrees C, then a manual compensator can be used. If no compensator is needed, a fixed resistor can be installed across the temperature compensator terminals. Any of the above devices–automatic compensation, manual compensation or fixed resistor–operate as a function of the pH meter’s electronic circuit. As such, information and parts should be obtained from the meter manufacturer. If automatic compensators are used, they should always be at the same location as the pH electrode. When electrodes are calibrated in buffer, the temperature compensator also should be in the buffer. In a similar way, a manual temperature compensator should be adjusted to reflect the temperature to which the pH electrode is exposed during both calibration and operation.
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