The Labmart LMPH12 Benchtop pH / mV / °C Meter is a high-precision laboratory meter for pH, millivolt and temperature measurement. It provides up to 5-point pH calibration, automatic buffer recognition, automatic temperature compensation, ±1999 mV measurement, 500-reading memory and a large backlit LCD display.

3. Detailed Product Description

Product Overview

The LMPH12 Benchtop pH / mV / °C Meter is designed for accurate laboratory measurement of pH, ORP/millivolt and temperature. It features a large backlit LCD display with measurement prompts to simplify routine operation.

In pH mode, the meter supports up to 5-point push-button calibration with automatic buffer recognition and selectable USA, NIST, DIN or user-defined buffer standards. The instrument automatically calculates and displays electrode slope after calibration.

For ORP measurements, the LMPH12 provides absolute or relative millivolt measurement and single-point offset calibration. Automatic endpoint functionality freezes stable readings for easier recording.

The meter also includes configurable stability conditions, selectable measurement resolution, temperature units, date/time settings, calibration reminders and memory for up to 500 readings with date and time.

Key Features & Benefits

• Benchtop pH / mV / °C meter
• pH measurement range of -2.000 to 20.000 pH
• Up to 5-point pH calibration
• Automatic buffer recognition
• USA, NIST, DIN and user-defined buffer options
• Automatic electrode slope calculation
• Automatic Temperature Compensation (ATC)
• ORP/mV measurement up to ±1999 mV
• Absolute and relative millivolt measurement
• Single-point ORP offset calibration
• Automatic endpoint function
• Selectable pH and mV resolution
• Calibration-due reminder
• 500-reading memory with date and time
• Built-in real-time clock
• Large backlit LCD display
• Automatic or manual temperature compensation
• Configurable auto-off
• Reset-to-factory-default function

4. Technical Specifications

5. Applications

The LMPH12 is suitable for:

• pH measurement
• ORP/mV measurement
• Temperature measurement
• Water-quality testing
• Chemical laboratory analysis
• Pharmaceutical laboratory testing
• Food and beverage testing
• Environmental laboratory analysis
• Research and development
• Quality-control laboratories
• Academic and teaching laboratories

6. Suitable For

The LMPH12 is suitable for:

• Chemical laboratories
• Pharmaceutical laboratories
• Food and beverage laboratories
• Environmental laboratories
• Water-testing laboratories
• Research institutions
• Quality-control laboratories
• Colleges and universities
• Industrial laboratories
• General analytical laboratories

7. FAQs

1. What is the LMPH12 used for?

The LMPH12 is a benchtop meter for measuring pH, millivolts/ORP and temperature.

2. What is the pH measurement range?

The pH range is -2.000 to 20.000 pH.

3. What is the pH accuracy?

The specified pH accuracy is ±0.002 pH.

4. How many calibration points does the LMPH12 support?

It supports up to 5-point pH calibration.

5. Does it automatically recognize calibration buffers?

Yes. The pH mode provides automatic buffer recognition.

6. Which buffer standards are supported?

The meter supports USA, NIST, DIN and user-defined buffer standards.

7. Does the meter provide automatic temperature compensation?

Yes. ATC is available, with temperature compensation specified from 0–100°C.

8. What is the mV measurement range?

The mV range is ±1999 mV.

9. Can the LMPH12 measure ORP?

Yes. The meter supports ORP measurement through its mV functions, including absolute and relative millivolt measurement.

10. How many readings can be stored?

The memory can store up to 500 readings with date and time.

11. Does the meter have a calibration reminder?

Yes. The calibration reminder can be configured from 1 to 30 days or switched off.

12. What accessories are supplied?

Standard accessories include the pH meter, pH electrode, pH 4.01/7.00/10.01 buffers, temperature probe, electrode stand, 5V power adaptor, instruction manual and test certificate.