The G-Tech PH201 and PH202 Digital pH Meters are compact, easy-to-use, and highly accurate devices for measuring the pH value and temperature of various solutions.

G-Tech Digital pH Meter With Temperature – PH201 / PH202 (High-Precision pH Tester Pen)

The G-Tech PH201 and PH202 Digital pH Meters are compact, easy-to-use, and highly accurate devices for measuring the pH value and temperature of various solutions. Perfect for laboratory, industrial, environmental, and domestic applications such as water testing, aquaculture, food safety, and chemical mixing – these meters give fast and reliable readings with the added benefit of automatic temperature compensation and calibration.

Designed with user convenience in mind, the PH201 offers ±0.1 pH accuracy with a 0.1 resolution ratio, while the PH202 takes precision even further with ±0.05 accuracy and a 0.01 resolution. Both models come with a large LCD screen with white backlight, auto power-off, data hold, and low battery indication, making them ideal tools for on-the-go or field-based testing needs.

Key Features

•  Wide pH Range: Measures from 0.00 to 14.00 for complete solution testing.

•  Temperature Detection: Simultaneously measures temperature from 0°C to 60°C (32°F ~ 140°F).

•  Large Backlit Display: Easy-to-read LCD with white backlight, perfect for low-light environments.

•  Data Hold Function: Locks the reading on screen for convenience.

•  Temperature Unit Switch: Toggle between °C and °F easily.

•  Low Battery Indicator: Never get caught with a dead battery during testing.

•  Memory Function: Retains previous measurement after power off.

•  Solution Temperature Compensation: Adjusts for accurate pH readings even when temperature changes.

•  Manual Calibration: Calibration function ensures long-term accuracy.

Technical Specifications

Function Highlights

• Auto shut-off for battery saving

• Manual calibration for high accuracy

• Automatic temperature compensation (ATC)

• LCD with backlight for visibility in any environment

• Hold function for freezing readings on display

What’s In The Box?

• G-Tech PH201 or PH202 pH Meter (based on your model selection)

• pH Buffer Powders (pH 4.01, 6.86, 9.18) for calibration

• User Manual

• Pre-installed Button Cell Batteries

Frequently Asked Questions

Q1: What’s the difference between PH201 and PH202?
A: The main difference is in precision. PH201 offers ±0.1 pH accuracy with 0.1 resolution, while PH202 offers ±0.05 pH accuracy with 0.01 resolution – ideal for applications where high accuracy is critical.

Q2: Can it measure temperature as well?
A: Yes, both models include built-in temperature measurement from 0°C to 60°C (32°F to 140°F) with automatic compensation.

Q3: How do I calibrate the meter?
A: Use the included pH buffer powders to prepare calibration solutions. Press the CAL button and follow the manual’s steps to calibrate.

Q4: Is it suitable for aquarium or RO water testing?
A: Absolutely! It’s perfect for aquariums, hydroponics, pools, drinking water, RO systems, and lab use.

Q5: What batteries are required and are they included?
A: It uses 3 x LR44 button batteries, and yes, they are included.