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Environmental Tester Guide

General DOM551SD Data Logging Dissolved Oxygen Meter with SD card

General Tools DOM551SD
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  • Uses heavy-duty Polarographic oxygen probe
  • Precisely measures DO from 0 to 20 mg/L,as well as liquid temperature
  • Easy to calibrate
  • Supports automatic and manual data logging
  • Time-stamps and stores measurements on SD memory cards
  • Sampling time settable from 1 second to 9 hours
  • Automatically compensates for altitude and salt content of liquids
  • 1.5 x 2.0 in. backlit liquid crystal display


  • Electroplating
  •  Water conditioning 
  •  Wastewater monitoring 
  •  Aquaculture (fish farming)


  • Electroplating
  • Water conditioning
  • Wastewater monitoring
  • Aquaculture (fish farming)
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List Price: $699.00
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Product Information

Data Logging Dissoved Oxygen Meter with SD card accurately measures dissolved Oxygen concentration of liquid or air. This Data Logging Dissoved Oxygen Meter with SD card's unique feature is its patented technique for storing sampled data in Excel format on removable SD memory cards.

What's In The Box

  • Hard carrying case
  • Oxygen probe
  • Probe-filling electrolyte
  • Two spare probe heads and diaphragm set
  • 2 GB SD memory card
  • User’s manual
  • 1 Year Limited Warranty


Embedded Microcontroller Custom single-chip LSI device
Display Type LCD with green backlight
Display Size 2.05 x 1.5 in. (52 x 38mm)
DO Measurement Range 0 to 20 mg/L
DO Measurement Resolution 0.1 mg/L
DO Measurement Accuracy ± 0.4 mg/L
Oxygen in Air Measurement Range 0 to 100%
Oxygen in Air Measurement Resolution 0.1% O2
Oxygen in Air Measurement Accuracy ±0.7% O2
Temperature Measurement Range 32°to 122°F (0°to 50°C)
Temperature Measurement Resolution 0.1 °F or °C
Temperature Measurement Accuracy ±1.5 °F (±0.8 °C)
Compensation For Temperature Automatic
Compensation For Altitude 0 to 29,200 ft. (0 to 8,900m)
Compensation For Liquid Salt Content 0 to 50%
Data Logging Sampling Time 1 second to 9 hours
DO Probe Type Polarographic
SD Memory Card Capacity 1 GB to 16 GB
Power Supply Six Alkaline “AA” batteries or 9-VDC adapter
Operating Temperature 32°to 122 °F (0°to 50° C)


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