Professional pH Tester Apera PH20

Pocket pH Tester PH20

Quick. Simple. Reliable.

The Apera Instruments PH20 tester is one of the most reliable pocket pH testers, suitable for general pH testing in hydroponics, home brewing, education, pool and spa maintenance, water treatment, and many other applications.

Intelligent Features

Automatic recognition and alerts for stable values enhance consistency and simplify the entire measurement process. Self-diagnostics alerts users to out-of-range measurements and incorrect calibrations.

Product Features

• Easy calibration using buffer recognition; automatic temperature compensation (ATC) ensures measurement accuracy at various temperatures (32-122°F or 0–50°C)
• Automatic recognition and alerts for stable values ensure consistency and simplify measurements
• Ultra-sharp screen with a 180-degree viewing angle and dual temperature/pH display, indication of completed calibrations, and stable measured values
• Smart self-diagnostics
• 1 to 3 points automatic calibration with automatic buffer recognition
• Operates up to 2000 hours on AAA batteries
• CE Declaration of Conformity

Product Description

One of the most reliable pocket pH testers, ideal for pH testing in hydroponics, home brewing, school laboratories, and pool and spa maintenance. The tester offers up to 3-point automatic calibration and automatic temperature compensation (ATC) within the range of 32°F to 122°F (0 to 50 °C), reproducible accuracy of ±0.1 pH, and a measuring range from 0 to 14.0 pH; automatic recognition and indication of stable values ensure repeatability and facilitate the entire measurement process. The ultra-sharp screen with a 180-degree viewing angle allows for dual display of temperature/pH and indicates completed calibrations (L/M/H for three calibration points) and stable measured values (using a smiley face).

The tester is CE certified and comes with a two-year warranty (six-month warranty on the probe). The company manufactures scientific analytical instruments, such as pH, conductivity, turbidity, and dissolved oxygen testers and sensors, for over 25 years, complying with ISO 9001:2008 standards.

NOTE: The device measures inaccurately if used with distilled or deionized water since this water contains insufficient ions, which is crucial for the proper functioning of the electrode. Specialized pH electrodes are recommended for measuring these waters. DO NOT STORE the probe in distilled or deionized water to prevent damage to the glass membrane. Use distilled water only for cleaning the pH probe.

Technical Specifications

• Accuracy: ±0.1pH, ±0.5˚C.
• Range: 0 to 14.0pH, 0 to 50˚C
• Resolution: 0.1pH, 0.1˚C.
• 0 to 50˚C ATC (Auto Temperature Compensation)
• Calibration: 1 to 3 points
• Power Supply: 4x AAA batteries (not included)
• Protection Class: IP67
• Dimensions (W x H x D): 40 x 31 x 178 mm
• Weight: 107g

The package contains:

1x PH20 pH tester

1x English user manual (Czech version will be sent via email)

All packed in a plastic box

Two-year warranty on the device. Six-month warranty on the probe.

Warning: pH calibration solutions are not included!

This product is #3 on Amazon!