The Labmart LMION40 Benchtop ION / pH / mV / °C Meter is a high-accuracy laboratory meter designed for measuring pH, ion concentration, ORP/mV and temperature in liquid samples. It supports up to 5-point pH and ion calibration, automatic buffer recognition, automatic temperature compensation, direct ion concentration readout and 500-data memory with date and time. It is suitable for chemical laboratories, environmental testing, water analysis and swimming-pool applications.

3. Detailed Product Description

Product Overview

The Labmart LMION40 is a benchtop multi-function electrochemical meter combining pH, ion concentration, mV/ORP and temperature measurement in a single instrument. It provides selectable measurement resolutions, multi-point calibration and automatic or manual temperature compensation for flexible laboratory testing.

In pH mode, the instrument supports up to five calibration points with automatic buffer recognition and calculates electrode slope after calibration. In ion mode, it provides 2–5 point calibration and direct ion concentration measurement, simplifying concentration analysis when used with a suitable ion-selective electrode.

The LMION40 can store up to 500 data sets with date and time, while its USB communication interface enables data transfer. A built-in calibration reminder and real-time clock support organized laboratory measurement and record keeping.

Key Features and Benefits

• Multi-parameter measurement: Measures pH, ion concentration, mV and temperature in one benchtop platform, reducing the need for separate instruments.
• Up to 5-point pH calibration: Supports multi-point calibration with automatic buffer recognition for flexible pH measurement.
• Up to 5-point ion calibration: Enables calibration across low-to-high concentrations for ion-selective electrode measurements.
• Direct ion concentration readout: Displays ion concentration directly in selectable units, simplifying routine ion analysis.
• Automatic Temperature Compensation: ATC supports temperature-compensated measurements across the specified temperature range.
• Automatic endpoint function: Freezes stable readings to make results easier to observe and record.
• 500-data memory: Stores measurement results with date and time for convenient data review.
• Selectable stability conditions: Low or high stability conditions can be selected according to measurement requirements.
• Calibration reminder: Adjustable calibration reminder from 1–31 days or off helps users maintain a regular calibration schedule.
• Customizable setup: Users can configure buffer standards, calibration points, stability conditions, resolution, units, date and time.
• USB communication: Provides a USB communication interface for data connectivity.

4. Technical Specifications

Technical specifications above are taken from the LMION40 specification table in the supplied catalogue.

5. Applications

The LMION40 can be used for:

• pH measurement of liquid samples
• Ion concentration measurement using compatible ion-selective electrodes
• ORP / relative mV measurements
• Temperature measurement of liquid samples
• Environmental water testing
• Chemical laboratory analysis
• Swimming-pool water testing
• Research and analytical laboratories
• Routine laboratory quality-control testing
• Water and liquid-sample analysis

The supplied catalogue specifically identifies environmental studies, chemical laboratories and swimming pools as application areas.

6. Suitable For

• Chemical laboratories
• Environmental testing laboratories
• Water testing laboratories
• Research institutions
• Quality-control laboratories
• Educational and academic laboratories
• Swimming-pool water testing
• Industrial laboratories
• Laboratories requiring pH and ion-selective electrode measurements

7. FAQs

1. What does the Labmart LMION40 measure?

The LMION40 measures pH, ion concentration, mV and temperature.

2. What is the pH range of the LMION40?

The pH measurement range is -2.000 to 20.000 pH.

3. How many calibration points are available?

The instrument supports up to 5-point calibration for pH and ion concentration measurements.

4. Can the LMION40 measure ion concentration?

Yes. It provides direct ion concentration measurement from 0.001 to 19999 ppm, mg/L or mol/L, depending on the applicable ion-selective electrode and measurement range.

5. Does the LMION40 have automatic temperature compensation?

Yes. The meter supports automatic or manual temperature compensation, with temperature compensation specified from 0–100°C.

6. Can the LMION40 measure ORP?

The instrument provides an mV measurement range of ±1999.9 mV, supporting mV/ORP-type measurements with the appropriate electrode configuration.

7. How much data can the meter store?

The LMION40 can store 500 data sets with date and time.

8. What electrodes are supplied with the meter?

Standard accessories include a pH electrode and ATC probe. Fluoride and nitrate ISEs are listed as optional accessories.

9. What pH buffer standards can be selected?

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

10. Does the meter have USB connectivity?

Yes. The LMION40 includes a USB communication interface.

11. What is the temperature measurement range?

Temperature can be measured from 0 to 105°C, with an accuracy of ±0.5°C.

12. Is the LMION40 suitable for environmental and water testing?

Yes. The supplied product catalogue specifically identifies environmental studies, chemical laboratories and swimming pools among its application areas.