Best Digital PH Tester for Soap Making in 2025
Updated on July 2025
#1
Recommended
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- Contains a small amount of water in the electrode cap to maintain sensitivity; normal to find droplets at first use.
- Measures pH accurately to 0.01 within a range of -2.00 to 16.00 pH and a temperature range of 32 to 122˚F (0 to 50˚C); features automatic power-off after 8 minutes of inactivity.
- Supports easy auto calibration for 1-3 points, recognizing five standard buffer solutions; includes automatic temperature compensation for precise readings.
- High-quality, replaceable glass pH probe suitable for various applications such as pools, hydroponics, environmental monitoring, and beverages.
- Large, dual-display LCD with backlit colors for easy reading of pH and temperature, including reminders for calibration and stable readings.
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- Contains a small amount of water in the electrode cap to maintain sensitivity; normal to find droplets at first use.
- Measures pH accurately to 0.01 within a range of -2.00 to 16.00 pH and a temperature range of 32 to 122˚F (0 to 50˚C); features automatic power-off after 8 minutes of inactivity.
- Supports easy auto calibration for 1-3 points, recognizing five standard buffer solutions; includes automatic temperature compensation for precise readings.
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#2
Value for Money
25% Off
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- Auto calibration with buffer recognition for accuracy across temperatures (32 to 122°F)
- High-response Apera quality pH sensor with low impedance
- Includes rugged carrying case, pH 4 & 7 buffers, and lanyard
- Stable value recognition enhances measurement consistency
- 2000 hours of continuous use powered by AAA batteries
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- Auto calibration with buffer recognition for accuracy across temperatures (32 to 122°F)
- High-response Apera quality pH sensor with low impedance
- Includes rugged carrying case, pH 4 & 7 buffers, and lanyard
- Stable value recognition enhances measurement consistency
- 2000 hours of continuous use powered by AAA batteries
#3
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- Professional pH meter for measuring acidity and alkalinity in foods with a range of 0.00-14.00pH and a resolution of 0.01pH. Includes a sponge protective cover to extend electrode lifespan.
- Equipped with upgraded glass electrodes for improved sensitivity and stability, allowing for quick and accurate pH readings for food quality assessment.
- Connects to a mobile app to display test results, store up to 1,000 data points, and add notes, with alerts for out-of-range measurements.
- Spear-shaped electrode design enables testing of liquids, semi-solids, and solids; suitable for various applications including bread, brewing, and water quality testing.
- Features such as HD backlight, automatic temperature compensation, and easy temperature conversion enhance usability, even in varying light and temperature conditions.
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- Professional pH meter for measuring acidity and alkalinity in foods with a range of 0.00-14.00pH and a resolution of 0.01pH. Includes a sponge protective cover to extend electrode lifespan.
- Equipped with upgraded glass electrodes for improved sensitivity and stability, allowing for quick and accurate pH readings for food quality assessment.
- Connects to a mobile app to display test results, store up to 1,000 data points, and add notes, with alerts for out-of-range measurements.
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#4
13% Off
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- Highly accurate pH test strips for measuring urine and saliva, backed by 8 years of lab improvements and ISO 9001 certification.
- Results are easily readable; simply dip the strip, wait a moment, and compare with the color chart included in the manual.
- Designed for longevity; seal the light-blocking bottle after each use to maintain strip effectiveness.
- Versatile usage for various applications including water testing, food processing, soap making, and educational experiments.
- Customer support available 24/7; returns accepted for any quality issues with the pH test strips.
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- Highly accurate pH test strips for measuring urine and saliva, backed by 8 years of lab improvements and ISO 9001 certification.
- Results are easily readable; simply dip the strip, wait a moment, and compare with the color chart included in the manual.
- Designed for longevity; seal the light-blocking bottle after each use to maintain strip effectiveness.
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#5
26% Off
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- Suitable for home and lab testing of TDS and pH levels in aquariums and pools
- Measures pH from 0 to 14 with quick and accurate readings
- 3-in-1 TDS meter with a range of 0-9990 ppm and conductivity up to 9990 µs/cm; accurate within ± 2%
- Compact and lightweight design with a protective case for easy portability
- Includes pH meter, 3-in-1 TDS meter, and 3 calibration buffers
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- Suitable for home and lab testing of TDS and pH levels in aquariums and pools
- Measures pH from 0 to 14 with quick and accurate readings
- 3-in-1 TDS meter with a range of 0-9990 ppm and conductivity up to 9990 µs/cm; accurate within ± 2%
- Compact and lightweight design with a protective case for easy portability
- Includes pH meter, 3-in-1 TDS meter, and 3 calibration buffers
#6
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- Tests pH levels in various environments such as drinking water and swimming pools.
- Simple calibration process: immerse the tester in solution, press CAL for 3 seconds, and select the powders for accuracy.
- Easy to operate: turn it on, place the probe in liquid, stir, and wait for a stable reading.
- Automatic temperature compensation ensures accurate measurements regardless of liquid temperature.
- Compact size allows portability for testing in various locations, including travel or outdoor activities.
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- Tests pH levels in various environments such as drinking water and swimming pools.
- Simple calibration process: immerse the tester in solution, press CAL for 3 seconds, and select the powders for accuracy.
- Easy to operate: turn it on, place the probe in liquid, stir, and wait for a stable reading.
- Automatic temperature compensation ensures accurate measurements regardless of liquid temperature.
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#7
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- Monitor pH and temperature accurately in fish tanks or other water types; pH range: 0.0 to 14.0, accuracy: ±0.1, resolution: 0.01
- Includes a permanent temperature probe and a replaceable pH probe for easy maintenance; features one-touch calibration with automatic buffer recognition for up to 3 points (pH 7.0 / 4.01 / 10.01)
- Automatic Temperature Compensation (ATC) ensures precise pH readings regardless of temperature fluctuations
- Compact design with a large LCD display and backlight for easy reading; includes pH and temperature display with power-saving mode
- Features pH calibration function, low battery indicator, and switchable temperature units (°C / °F) for user convenience
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- Monitor pH and temperature accurately in fish tanks or other water types; pH range: 0.0 to 14.0, accuracy: ±0.1, resolution: 0.01
- Includes a permanent temperature probe and a replaceable pH probe for easy maintenance; features one-touch calibration with automatic buffer recognition for up to 3 points (pH 7.0 / 4.01 / 10.01)
- Automatic Temperature Compensation (ATC) ensures precise pH readings regardless of temperature fluctuations
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#8
18% Off
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- 3-in-1 functionality for measuring pH, TDS, and temperature with precision for comprehensive water quality assessment.
- Automatic calibration with a sensitive glass probe, ensuring accurate measurements across a full pH range of 0-14 using standard solutions.
- High accuracy and rapid response enabled by a specialized algorithm chip, with a backlit LCD for clear readings; includes a one-button lock feature for stable measurements.
- Automatic temperature compensation provides accurate measurements between 32°F and 140°F, addressing potential inaccuracies due to temperature variations.
- Compact design for easy measurement of various water sources including aquariums, pools, and drinking water.
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- 3-in-1 functionality for measuring pH, TDS, and temperature with precision for comprehensive water quality assessment.
- Automatic calibration with a sensitive glass probe, ensuring accurate measurements across a full pH range of 0-14 using standard solutions.
- High accuracy and rapid response enabled by a specialized algorithm chip, with a backlit LCD for clear readings; includes a one-button lock feature for stable measurements.
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#9
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- Monitor the pH level of sourdough starter during fermentation, crucial for achieving desired bread acidity. The spear probe allows for easy insertion into dough for quick and accurate readings with an LCD display.
- Test the pH of liquids like hydroponic solutions, drinking water, and beverages. Essential for monitoring kombucha, with optimal pH levels between 2.5-3.5 for safety during fermentation.
- Ensure sushi rice acidity is at or below the recommended pH of 4.6. This meter provides accurate pH readings for larami curing, jam, cheese, and pickle preparations.
- Important tool for soapmaking, allowing direct pH measurement in lotions and soaps for necessary adjustments without complicated water mixtures.
- Utilizes spear sensor technology for stable readings across solid, semi-solid, and liquid samples, ensuring reliability during fermentation testing.
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- Monitor the pH level of sourdough starter during fermentation, crucial for achieving desired bread acidity. The spear probe allows for easy insertion into dough for quick and accurate readings with an LCD display.
- Test the pH of liquids like hydroponic solutions, drinking water, and beverages. Essential for monitoring kombucha, with optimal pH levels between 2.5-3.5 for safety during fermentation.
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#10
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- Measures pH, salinity, EC, TDS, and temperature for comprehensive water quality assessment.
- Offers automatic temperature compensation for accurate readings between 0 °C and 60 °C, regardless of liquid temperature.
- Backlight feature enabling use in low-light conditions; readings can be locked for convenient monitoring.
- Supports 3-point automatic calibration for precise measurements; factory calibrated for immediate use.
- Versatile for various applications including pools, aquariums, hydroponics, and water quality testing.
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- Measures pH, salinity, EC, TDS, and temperature for comprehensive water quality assessment.
- Offers automatic temperature compensation for accurate readings between 0 °C and 60 °C, regardless of liquid temperature.
- Backlight feature enabling use in low-light conditions; readings can be locked for convenient monitoring.
- Supports 3-point automatic calibration for precise measurements; factory calibrated for immediate use.
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