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pH/Ion/ORP Meter, Benchtop, BEP-M120,BEP-M130,BEP-M131

  • 7 inch TFT display
  • Stores up to 1000 data sets
  • Setup menu contains 17 options
  • Accuracy: 0.002pH

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Measurement Parameters

• BEP-M120: pH, mV, relative mV, temperature

• BEP-M130: pH, mV, relative mV, ion concentration, water hardness, temperature

• BEP-M131: Ion concentration, water hardness, mV, temperature



• 1 to 5 points calibration with automatic recognition for USA, NIST and DIN buffers

• Automatic electrode diagnosis shows the pH slope and offset

• Solution temperature coefficient compensates for the pure water samples and references the pH to 25°C


• 1 point offset calibration allows adjusting the displayed value to a known standard

• Relative and absolute millivolt modes ensure the reliable ORP measurements


Ion Concentration

• 2 to 5 points calibration, including the 8 concentration points can be selected

• Electrode management is capable of storing and recalling up to 3 electrode slopes

• Automatic electrode diagnosis shows the calibration points and slopes

• Selectable ion measurement methods (direct reading, known addition, known subtraction, sample addition, sample subtraction) and concentration units (ppm, mg/L, mol/L or mol/L) Water Hardness

• 2 to 5 points calibration from low to high concentrations

• Selectable measurement units(German degree, English degree,French degree,mmol/L and mg/L) are used for professional water hardness measurements

General Features

• Auto-Read function senses and locks the measurement endpoint.
• Timed Interval Readings sends the measurement data to a PC or printer.
• Limit Alarm automatically alerts when reading exceeds the specified range.
• Calibration due alarm prompts user to calibrate the meter regularly.
• Calibration report shows the date, time, pH slope and offset.
• Password protection prevents the unauthorized calibration and settings.
• Expanded memory stores or recalls up to 1000 data sets.
• Reset function automatically resumes all settings back to the factory defaults.



Model BEP-M120 BEP-M130  BEP-M131
pH Range -2.000-20.000pH _
Resolution 0.001,0.01, selectable _
Accuracy ±0.002pH _
Calibration Points 1 to 5 points _
Ph Buffer Options USA, NIST, DIN, 5 custom buffers _
ORP mV Range ±2000.0mV
Relative mV Range ±2000.0mV _
Resolution 0.1mV
Accuracy ±0.2mV
Calibration Points 1 point _
Ion Range 0.001~30000 (depending on the range of ISE) _
Resolution 0.001,0.01,0.1,1 _
Accuracy ±0.5% F.S. (monovalent), ±1% F.S. (divalent)) _


ppm, mg/L, mol/L, mmol/L _
Calibration Points 2 to 5 points (0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000) _
Measurement Methods Direct reading, known addition, known subtraction, sample addition, sample subtraction _
Electrode Management 1 to 3 electrodes _
Water Hardness Range 0.05~200mmol/L, 0~1122°dH, 0~1404°e, 0~2000°fH, 0~8000mg/L (Ca2+) _
Resolution 0.001,0.01,0.1,1 _
Accuracy ±1% F.S. _
Calibration Points 2to 5points 0.01,0.1,1.10,100mmol/L) _
Temperature Range 0~105°C/32~221°F
Resolution 0.1°C/0.1°F
Accuracy ±05°C/0.9°F
Offset Calibration 1 point, reading ±10°C
Other Specifications Temperature Compensation 0~100°C, manual or automatic
Solution Temperature Coefficient 25°C _
Stability Criteria Standard or high-accuracy
Calibration Due Alarm 1to 31 days or off
Interval Readings 10, 30, 60 seconds, 10, 30 minutes or off
Password Protection 4digits
Memory 1000 data sets
Communication Interface USB
Connector BNC, 3.5 mm jack socket
Display 7 inches TFT LCD
Power Requirements DC12V power adapter
Dimensions 240(L)× 220 (W)× 80(H)mm
Weight 1.7kg

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    We will usually contact you within 24 hours. You could also call us (+86-531-88982330) during working hours ( 8:30 am to 5:45 pm UTC+8 Mon.~Sat. ) or use the website live chat to get prompt reply.

    Contact Info

    17th floor, Mingsheng Building, Xinluo Street, Jinan

    Phone: +86-531-88982330

    Fax: +86-531-88983691


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