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pH Meter, ORP Meter, Portable Type, BEP-M221

  • 1 to 5 points
  • Relative mV measurement mode
  • Setup menu contains 9 options
  • Accuracy: 0.002pH

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Measurement Parameters  
pH, mV, relative 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
• Automatic temperature compensation ensures accurate readings over the entire range
• Calibration due alarm prompts user to calibrate the meter regularly
• 1 point offset calibration allows adjusting the displayed value to a known standard
• Relative and absolute millivolt modes ensure the reliable ORP measurements General Features
• Auto-Read function senses and locks the measurement endpoint
• Auto-Power Off effectively conserves battery life
• Setup menu allows to set the pH buffer set, number of calibration points, resolution, stability criteria, temperature unit, date and time, etc.
• Reset function automatically resumes all settings back to the factory defaults
• Expanded memory stores or recalls up to 500 data sets
• Multi-mode powerscheme (batteries, power adapter and USB port) ensures that using


portbale-ph-meter 01

• USB communication interface is easy to transfer data to PC



Model BEP-M221
Range -2.000 to 20.000pH
Resolution 0.001, 0.01, 0.1pH, selectable
Accuracy ±0.002pH
Calibration Points 1 to 5 points
pH Buffer Options USA, NIST, DIN, 2 custom buffers
Range ±1999.9mV
Resolution 0.1, 1mV, selectable
Accuracy ±0.2mV
Calibration Points 1 point
Measurement Modes Relative or absolute mV
Range 0 to 105°C/32 to 221°F
Resolution 0.1°C/0.1°F
Accuracy ±0.5°C/±0.9°F
Offset Calibration 1 point
Calibration Range Reading ±10°C
General Specifications
Temperature Compensation 0 to 100°C/32 to 212°F, manual or automatic
Stability Criteria Low or high
Calibration Due Alarm 1 to 31 days or off
Auto-Power Off 10, 20 or 30 minutes after last key pressed
Memory Stores up to 500 data sets
Output USB
Connector BNC, 3.5mm jack socket
Display Custom LCD (80×60mm)
Power 3×1.5V AA batteries or DC5V power adapter
Battery Life Approximately 150 hours (turn off the backlight)
Dimensions 170(L)×85(W)×30(H)mm
Weight 300g

Accessories & Package

Accessories & Package



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    Contact Info

    Rm. 2014, Bldg. 3, Ligaoguojihuayuan, No. 1222, West Aoti Road, Lixia District, Jinan, Shandong

    Phone: +86-531-88982330

    Fax: +86-531-88983691


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