Key facts
- Brand
- EXTECH
- Model
- PH300
- Category
- Other Electronics
- Industry
- Industrial
- Documents
- 2
- Languages
- ZH · EN
- Last added
- 2026-10-19
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Extech PH300 Digital pH Meter User Manual
The Extech PH300 is a digital pH meter designed to measure pH, mV, and temperature parameters. It features automatic calibration, automatic temperature compensation (ATC), data storage, and self-diagnosis capabilities. The device supports up to 13 types of pH standard buffer solutions and includes a digital filter to improve measurement speed and accuracy. It offers special modes for ammonia and pure water measurements and features a backlit LCD display with an IP57 dust and water resistance rating. This manual is written in Chinese.
Read onlineExtech PH300 specifications
| Measurable Parameters | pH, mV, Temperature |
|---|---|
| Standard Buffer Solutions | Up to 13 types |
| Data Storage Capacity | 100 pH values, 100 mV values, 200 data points |
| Protection Rating | IP57 |
| Power Source | 2 x AA 1.5V batteries |
All Extech PH300 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
How often should the instrument be calibrated?
For best results, the instrument should be calibrated once every day.
What are the error codes ERR-1 and ERR-2?
ERR-1 indicates an electrode zero potential error, and ERR-2 indicates an electrode slope error.
Is the Extech PH300 waterproof?
Yes, it has a waterproof housing that meets IP57 standards.
Does the meter support automatic calibration?
Yes, it supports automatic calibration using 4pH, 7pH, and 10pH solutions.