A foldable digital pH tester is a compact, portable instrument designed to measure the acidity or alkalinity of liquids across the full standard pH scale from 0 to 14. Including automatic temperature compensation (ATC) and simple calibration functions, ensuring reliable and precise measurements in various conditions.

Digital pH Tester With Glass Probe

Foldable & Handheld
SISCO's pH meter is widely used across many industries to measure the acidity or alkalinity of liquids accurately. In laboratories, it supports chemical analysis and research experiments. In agriculture, it helps monitor irrigation water quality for optimal crop growth. In aquaculture, it maintains healthy water conditions for fish and aquatic life.
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| Model | SISCO-PHM-009IV |
| Measuring Range | 0.00~14.00 pH |
| Resolution | 0.01 pH |
| Accuracy | Β±0.1 pH |
| Automatic Temperature Compensation | 0 β~50 β |
| Environment | 0 β~50 β; RH 95% max |
| Power Supply | 4*1.5V (AG-13 button battery) |
| Dimension | 130*27*16mm |
| Weight | 50g |
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A1: What is a pH meter?
Q1: A pH meter is an electronic instrument used to measure the acidity or alkalinity of a liquid. The device typically consists of an electrode and a digital display. When the probe is placed in a solution, it detects hydrogen ion activity and converts it into a pH reading.
A2: What is the typical pH range a pH meter can measure?
Q2: A typical pH tester can measure a pH range from 0 to 14, which covers the full scale from highly acidic to highly alkaline solutions. Most standard laboratory and portable pH meters are designed within this range.
A3: What causes unstable pH readings?
Q3: Unstable pH readings are usually caused by electrode problems, temperature changes, or contamination. A dirty or clogged glass electrode slows response and causes drift. Improperly stored electrodes lose sensitivity. Temperature fluctuations affect the electrochemical reaction, so readings vary if temperature compensation is not used. Air bubbles on the electrode surface can interfere with measurement.
Tips: How to replace this digital pH tester battery?
Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.
SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.