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Dissolved Oxygen Meter, Portable, BEP-M820/BEP-M821

  • Accuracy: ±0.5mg/L,±20%, ±0.2mgL,±2.0%
  • USB communication interface
  • 1-2 points calibration
  • Selectable the salinity and barometric pressure coefficients

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•1 or 2 points calibration using the air-saturated water or zero oxygen solution
•Salinity and barometric pressure compensations eliminate the measurement error
•Automatic temperature compensation ensures accurate readings over the entire range
•Auto-Read function senses and locks the measurement endpoint
•Auto-Power Off effectively conserves battery life.
•Setup menu allows setting the number of calibration points, resolution, temperature unit, concentration unit, stability criteria, 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
•USB communication interface for data transfer or connecting a power adapter to meter


BEP-M820,821: Meter, DO100 dissolved oxygen electrode, electrolyte solution, membrane cap and carrying case



Model BEP-M820 BEP-M821
DO Range 0.00~20.00mg/L, 0.0~200.0% saturation 0.00~20.00mg/L, 0.0~200.0% saturation
Resolution 0.01mg/L, 0.1% 0.01mg/L, 0.1%
Accuracy ±0.5mg/L,±20% ±0.2mgL,±2.0%
Other Specifications Calibration Points 1 or 2 points 1 or 2 points
Temperature Compensation 0~50°C/32~122°F, automatic 0~50°C/32~122°F, automatic
Barometric Pressure Correction 60.0~112.5kPa/450~850mmHg, manual 60.0~112.5kPa/450~850mmHg, manual
Salinity Correction 0.0~50.0g/L, manual 0.0~50.0g/L, manual
Stability Criteria Low or high
Calibration Due Alarm 1 to 31 days or off
Hold Function Manual a auto endpoint Manual or auto-endpoint
Auto-Off 30 minutes after last key pressed 10,20 or 30 minutes after last key pressed
Memory 1 data sets 500 data sets
Communication Interface USB USB
Connector 6-pin mini-DIN 6-pin mini-DIN
Display Custom LCD (80×60mm) Custom LCD (80×60mm)
Power Requirements 3× 1.5V AA batteries or DC5V power adapter 3× 1.5V AA batteries or DC5V power adapter
Dimensions 170(L)×85(W)×30(H)mm 170(L)×85(W)x30(H)mm
Weight 300g 300g

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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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