Pocket pH /°C/°F Tester PH-20S/F/L (CAT#: STEM-OEM-0270-ZJF)

The Pocket pH/°C/°F Tester is a compact, easy-to-use device designed for quick and accurate measurement of pH and temperature in a wide range of applications, including laboratory analysis, environmental monitoring, hydroponics, food processing, and water quality testing. It supports multiple replaceable pH electrodes to accommodate different sample types:
PH-S: Circular membrane for liquids
PH-F: Flat membrane for semi-solids
PH-L: Flat membrane for small-volume samples
Accessories include: pH buffer pouches (pH 4.01 / 7.00 / 10.01), batteries, and a plastic box or carrying case.

pH Range: 0.0~14.0 pH
Accuracy: ±0.05 pH
Calibration Points: 2 points
pH Buffer Options: USA (pH 4.01/6.86/7.00/9.18/10.01)
Temperature Range: 0~60°C
Temperature Resolution: 1°C
Temperature Accuracy: ±1°C
Temperature Compensation: 0~60°C, automatic
Hold Function: Manual
Auto-Off: 8 minutes after last key pressed
Operating Temperature: 0~50°C
Display: Dual-line LCD (21×21 mm)
Connector: BNC
Power Requirements: 2×1.5V AAA batteries
Battery Life: Approx. 200 hours of continuous use
Dimensions (L×D): 175×40 mm
Package Size (W×D×H): 325×140×270 mm
Net Weight: 100 g
Gross Weight: 1 kg

Application
PH-10S, 20S, 30S - Suitable for measuring liquid samples.
PH-10F, 20F, 30F - Suitable for measuring semisolid substances.
PH-10L, 20L, 30L - Suitable for measuring small-volume samples.
PH-40 - Compatible with a wide range of pH electrodes for flexible measurement needs.
PH-10/20 Features
Two-point push-button calibration with automatic buffer recognition.
Hold function freezes the current reading for easy viewing and recording.
Auto-Power Off function helps conserve battery life.
Replaceable electrode module reduces maintenance effort and long-term cost.
PH-30/40 Features
(PH-40 only) BNC connector allows easy connection to a variety of pH electrodes.
1 to 3 points calibration with automatic recognition for USA and NIST buffers.
(PH-30) Automatic temperature compensation ensures accurate readings.
(PH-40) Manual temperature compensation allows flexible input across a wide range.
Auto-Read function senses and locks the measurement endpoint.
Setup menu supports customization of buffer set, calibration points, temperature unit, auto-power off, etc.
Reset function restores settings to factory defaults for quick recovery.

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STEM-OEM-0269-ZJF
STEM-OEM-0271-ZJF
STEM-OEM-0272-ZJF