Product Details:


Product Description

LIM-MULTI 7 Water quality meter is designed for high performance and easy operation. The meter is capable of measuring up to 7 water quality parameters, including pH, ORP, Conductivity, TDS, Salinity, Resistivity, and Temperature.



  • MULTI-POINT PUSH-BUTTON CALIBRATION: The meter has multi-point calibration mode. From setup menu, choose calibration and immerse electrode into indicated calibration solution, press ENTER key and meter is automatically calibrated.
  • AUTO-BUFFER RECOGNITION: During calibration, if the calibration solution or selected value does not match the meter's indicated value, an ERROR message is displayed.
  • VIEWING OF ELECTRODE SLOPE: After calibration, the percentage slope of the electrode is displayed before the meter returns to measurement mode. Per the slope value, user decides whether to change the electrode.
  • AUTOMATIC TEMPERATURE COMPENSATION: By using temperature probe
  • AUTO-RANGING FOR CONDUCTIVITY: The meter has auto-range functions for measuring conductivity and total dissolved solids (TDS). Upon immersing conductivity sensor into sample solution, the screen immediately displays the value in appropriate measurement range for accuracy,
  • ADJUSTABLE TEMPERATURE COEFFICIENT: Various ions in solution have different temperature coefficients. LIM-MULTI 7 can set the temperature coefficient between 0 and 3.9% in degrees centigrade for optimum accuracy.
  • ADJUSTABLE CELL CONSTANT: The meter has three cell constants for measuring requirements. Once a cell constant has its calibration set, it is saved and does not require re-calibration when switching meter.
  • MESSAGE INDICATOR: LIM-MULTI-7 displays helpful messages like an on-screen manual for easy operation of this meter and selection of the various options.
  • SAVE AND COMMUNICATION INTERFACE: The meter all has real-time date/clock stamps. The memory stores up to 99 discrete data sets. Press the SAVE key to store the current measured values and it automatically generates a serial number with the date and time. This data can then be sent to a computer via the USB port







pH Range

-2.000 to 16.000 pH

pH Resolution

± 0.001 pH

pH Accuracy

± 0.002 pH

Calibration Points

2 Points, NIST (pH 4.00/6.86/9.18) or USA (pH 4.01/7.00/10.01)

mV / ORP Range

0 to 1999.9 mV

mV / ORP Accuracy

± 0.2 mV

Temperature Compensation

0.0 to 100.00C , Manual or Automatic

Conductivity Range

0  to 1.999,19.99,199.9,1999 µ S, 19.99, 200.0mS

Conductivity Accuracy

± 0.5% F.S

Calibration Points

1 Point per range

Temperature Compensation

0 to 50°C,  Manual or Automatic

Temperature Coefficient

0 to 3.9% per °C

Cell Constant

0.1,1.0,10   adjustable

TDS Range

0 to 100 ppt, Max.200 ppt

TDS Accuracy

+1% F.S

TDS Conversion Factor

0.01 to 1.00, Default 0.67

Salinity Range

0 to 50 ppt, 0.00 to 5.00%


±0.5ppt, ±0.05%

Resistivity Range & Accuracy

0 to 100 M, W ± 1%F.S

Temperature Range

0.0 to 100.0°C

Temperature Accuracy

± 0.3°C

Memory & Output

99 data sets with date/ time stamping, USB

Power Supply

DC 9 V, using AC Adapter 220V, A.C, 50 Hz


1.75 kg


ACCESSORIES : pH Electrode, Conductivity cell (1.0), pH buffers, temperature probe, Electrode Stand, Power Adaptor & Instruction Manual.

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