Portable pH/ORP meter LPRPM-A11

Portable pH/ORP meter LPRPM-A11 with high precision can improve temperature measurement accuracy through manual temperature calibration. It measure pH, mV, ORP, temperature of the sample. Equipped with built-in system menu helps in customize selection of up to 9 functional parameters. The unique calibration due reminder alerts user to calibrate the pH meter regularly. The Multi-mode power solution ensures smooth instrument usage. Its complied in accordance with GLP standards.

pH range (-2.00) to 20.00 pH
pH accuracy ± 0.002 pH
pH resolution 0.1, 0.01, 0.001 pH
Calibration points 1 - 5 points
Calibration solutions USA (pH 4.01 / 7.00 / 10.01 / 12.45), NIST(pH 1.68 / 4.01 / 6.86 / 9.18 / 12.45), DIN (pH 1.09 / 4.65 / 6.79 / 9.23 / 12.75) or user defined
Temperature compensation 0 to 100 °C, 32 to 212 °F, Manual or Automatic
mV range (-1999) to 1999 mV
mV accuracy ± 0.2 mV
mV resolution 0.1, 1 mV
Temperature measuring range 0 to 100 °C, 32 to 212 °F
Temperature accuracy ± 0.5 °C, ± 0.9 °F
Temperature resolution 0.1 °C
Hold function Manual
Storage/memory Stores up to 500 data sets
Communication output USB interface
Connector BNC
Dimension (L × W × H) 170 × 85 × 30 mm
Weight 300 g
Battery life About 150 hours
Power 4.5 V “AA batteries or DC 5 V power adapter
  • Measurement pH range: (-2.00) to 20.00 pH
  • pH accuracy: ± 0.002 pH up to three decimal points
  • Auto calibration recognition using 1 to 5 point calibration for pH mode
  • 1 point offset calibration for ORP mode allows to adjust the display value to a known standard
  • The mV measurements (relative & absolute) for accurate ORP readings
  • Automatic end point locking system for stable measurement (browsing & recording)
  • Automatic electrode slope display helps user decide whether to replace the sensor
  • Extended memory can store up to 500 sets of measurement data
  • Built-in clock automatically notes the date, time
  • USB communications interface sends data to PC
  • One touch reset automatically recovers the meter to factory default settings
Temperature probe
pH buffer solution USA(pH 4.01 / 7.00 / 10.01), NIST (pH 4.01 / 6.86 / 9.18)
Suitable pH electrodes

The portable pH/ORP meter has applications in waste water treatment & water management, aquaculture, food & beverage processing, environmental monitoring & research and educational purpose.

Related Products of pH Meters (Portable)

Labtron portable meters are used in quality analysis of water and other solutions. With portability, waterproof features, finds applications in indoor as well as outdoor measurement of pH, ORP, dissolved oxygen, water hardness, salinity, TDS etc.

pH range (-2.00) to 16.00 pH
pH accuracy ± 0.01 pH
pH resolution 0.01 pH
Calibration points 2 points

pH Meters (Portable)

Labtron portable meters are used in quality analysis of water and other solutions. With portability, waterproof features, finds applications in indoor as well as outdoor measurement of pH, ORP, dissolved oxygen, water hardness, salinity, TDS etc.

pH range (-2.00) to 16.00 pH
pH accuracy ± 0.01 pH
pH resolution 0.01 pH
Calibration points 2 points
pH range (-2.00) to 20.00 pH
pH accuracy ± 0.002 pH
pH resolution 0.1, 0.01, 0.001 pH
Calibration points 1 - 5 points

pH Tester

Labtron pocket testers are small and compact in size, gives fast and accurate results. The Pocket testers consist of pH, ORP, TDS, dissolved oxygen, salinity and conductivity tester for various laboratory as well as outdoor applications. Measurements can be taken by inserting the probe in to the test solution and after gentle stirring, stable readings can be noted down.

pH measurement range 0.0 - 14.00 pH
Shape of electrode Long distance planar pH electrode
pH measurement accuracy ± 0.1 pH
Calibration point 2 points
pH measurement range 0.0 - 14.00 pH
Shape of electrode Round glass pH electrode
pH measurement accuracy ± 0.1 pH
Calibration point 2 points
pH measurement range 0.0 - 14.00 pH
Shape of electrode Flat pH electrode
pH measurement accuracy ± 0.1 pH
Calibration point 2 points

Portable Water Hardness Meters

Labtron portable meters are used in quality analysis of water and other solutions. With portability, waterproof features, finds applications in indoor as well as outdoor measurement of pH, ORP, dissolved oxygen, water hardness, salinity, TDS etc.

Water hardness range 0.05 mmol / L - 0.2 mol / L<br/> (CaCO<sub>3</sub>) 0 - 19999 mg / L, (CaO) 0 - 11220 mg / L, (boiler) 0 - 400 mmol / L, (Ca) 0 - 8020 mg / L<br/> (German degree) 0 - 1122 °dH, (English degree) 0 - 1404 °e, (French degree) 0 - 2000 °f
Accuracy ± 1 % F.S.
Calibration points 2 to 5 points
Calibration solution 0.001, 0.01, 0.1 mmol / L, 0.001, 0.01, 0.1 mol / L

TDS Tester

Labtron pocket testers are small and compact in size, gives fast and accurate results. The Pocket testers consist of pH, ORP, TDS, dissolved oxygen, salinity and conductivity tester for various laboratory as well as outdoor applications. Measurements can be taken by inserting the probe in to the test solution and after gentle stirring, stable readings can be noted down.

TDS range 5 - 1000 ppm
TDS accuracy ± 1 % F.S.
TDS factor 0.4 to 1.0 (default 0.5)
Calibration points 1 point
TDS range 0.5 - 100.0 ppm
TDS accuracy ± 1 % F.S.
TDS factor 0.4 to 1.0 (default 0.5)
Calibration points 1 point
TDS range 0.05 - 10.00 ppt
TDS accuracy ± 1 % F.S.
TDS factor 0.4 to 1.0 (default 0.5)
Calibration points 1 point

Benchtop Conductivity Meter

Labtron benchtop meters are easy to use. The LCD display, manual or automatic mode of calibration, universal connector and other features are included in this range to produce accurate, reliable results. It consist of benchtop meter for measuring pH, conductivity, dissolved oxygen content, Ion concentration, water hardness level. These meters are suitable for simple to complex applications in water quality testing, research and analysis etc.

Conductivity Mode
Conductivity measurement range 0.01-20.0, 200.0, 2000 µS/cm, 20.00, 200.0 mS/cm
Conductivity accuracy ±1% F.S.
Conductivity resolution 0.001, 0.01, 0.1, 1
Conductivity calibration points 1 to 3 points
Conductivity calibration solutions 10 µS/cm , 84 µS/cm, 1413 µS/cm, 12.88 mS/cm, 111.8 mS/cm
TDS Mode
TDS measurement Range 0 to 10.00, 100.0, 1000 ppm, 10.00, 100 ppt (Max. 200 ppt)
TDS Accuracy ± 1 % F.S.
TDS Factor 0.01 to 1.00 (default 0.5)
TDS Calibration points 3 points
Temperature Mode
Temperature range 0 to 105°C, 32 to 221°F
Temperature accuracy ±1°C
Temperature resolution 0.1°C, 0.1°F
Temperature calibration points 1 point
Temperature Compensation Range and Mode Manual or Automatic, 0 to 100°C , 32 to 212°F
Temperature coefficient 0.0 to 10.0 % per °C
Cell constant K=0.1, 1, 10
Conductivity measurement range 0.000 μS/cm to 3000mS/cm
Resistivity measurement range 5.00 Ω·cm to 100.0 MΩ·cm
TDS measurement range 0.000 mg/L to 1000g/L
Salinity measurement range 0.00 to 8.00 %
Conductivity measurement range 0 - 20.0, 200.0, 2000 µS / cm, 200.0 mS / cm
Conductivity accuracy ± 1 % F.S.
Conductivity resolution 0.01, 0.1, 1
Conductivity calibration solutions 10 µS / cm , 84 µS / cm, 1413 µS / cm, 12.88 mS / cm, 111.8 mS / cm