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Labmate Portable pH Meter LMPH-402

Labmate Portable pH Meter LMPH-402

Labmate Portable pH Meter LMPH-402 is a high-precision handheld device designed for field and laboratory pH and ORP measurements. It supports pH, absolute and relative mV, and temperature monitoring with automatic or manual compensation. The meter allows up to 5-point calibration with automatic buffer recognition and stores up to 500 data sets. USB connectivity facilitates easy data transfer and meter powering. Its rugged design ensures reliable operation in outdoor and industrial environments.

  • Product Info

    Key Features

    • Measures pH (-2.00 to 20.000 pH), ORP (±1999.9 mV), relative mV, and temperature (0–105 °C)

    • Resolution: 0.001–0.1 pH selectable, 0.1/1 mV, 0.1 °C

    • Calibration: 1–5 points with automatic recognition for USA, NIST, DIN, and 2 custom buffers

    • Automatic or manual temperature compensation (0–100 °C)

    • Calibration due alarm (1–31 days)

    • Memory for 500 data sets, transferable via USB

    • Auto-read function with manual or auto-endpoint hold

    • Multi-mode power: 3 × 1.5V AA batteries or DC 5V adapter

    • Auto power-off to conserve battery life

    • Durable, rugged design suitable for field use

    Technical Highlights

    Parameter Specification
    pH Range -2.00 to 20.000 pH
    pH Resolution 0.001, 0.01, 0.1 pH (selectable)
    pH Accuracy ±0.002 pH
    ORP Range ±1999.9 mV
    ORP Resolution 0.1, 1 mV (selectable)
    ORP Accuracy ±0.2 mV
    Temperature Range 0–105 °C / 32–221 °F
    Temperature Resolution 0.1 °C / °F
    Temperature Accuracy ±0.5 °C / ±0.9 °F
    Temperature Compensation Manual or automatic (0–100 °C)
    Stability Criteria Low or high
    Calibration Points 1–5 points
    Memory 500 data sets
    Display Custom LCD (80 × 60 mm)
    Auto-Off 10, 20, or 30 minutes after last key press
    Power Supply 3 × 1.5V AA batteries or DC 5V adapter
    Dimensions 170 × 85 × 30 mm
    Weight 300 g

    Features

    • Automatic electrode diagnosis for pH slope and offset

    • Relative and absolute mV modes for reliable ORP readings

    • Setup menu for buffer sets, calibration points, temperature unit, and auto-power off

    • Reset function restores factory defaults

    • USB interface for data transfer or power

    • Expanded memory for storing and recalling 500 data sets

    • Rugged and durable for outdoor applications

    Standard Accessories

    • pH/ORP electrode with protective cap

    • USB cable

    • Batteries or DC adapter

    Applications

    • Food and beverage quality control

    • Hydroponics and agriculture (soil and nutrient solution analysis)

    • Environmental monitoring and water quality testing

    • Research laboratories for chemical or biochemical studies

    • Quick nutrient availability analysis

    Labmate LMPH-402 combines precision, portability, and durability, making it ideal for both field and laboratory pH and ORP monitoring.

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