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Mettler Toledo™ FG4 FiveGo™ Portable DO Meter

Manufacturer:  Mettler Toledo™ 51302955

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Catalog No. 01-915-720

This item has been discontinued by the manufacturer and is no longer available. Please call customer service for assistance: 1-800-766-7000.
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Meter Only (01-915-720) includes meter, operating instructions, Quick Guide, electrode clip, wrist strap, four AAA batteries.

Electrode Kit package (01-915-721) includes LE621 galvanic sensor with NTC 30kW ATC.

Field Kit package (01-915-722) includes LE621 and NTC 30kW ATC, carry bag and sample bottles.

Useful accessories: electrode clip, wrist strap, and a laminated quick guide are included with all FiveGo products



This entry-level meter delivers rapid and reliable results; fits in your hand and also within your budget. It measures dissolved oxygen with a low-maintenence galvanic probe; once connected, the instrument can be utilized for water and environmental analysis and applications in the Food and Beverage industry.

Powerful, time-saving features

  • Storage capacity for up to 30 measurements
  • Three measuring modes: %, ppm and mg/L
  • IP54 protection vs. dust and water
  • Automatic endpoint recognition
  • Corrections for salinity and barometric pressure
  • Five self-explanatory buttons with well-organized display
  • Simultaneously shows readings, temperature, and endpoint criteria
  • Facilitates rapid measurement and calibration



Meter, operating instructions, quick guide, electrode clip, wrist strap, four AAA batteries
1mmHg, 1mbar, 1 hPa
CE, ISO 9001, ISO 14001
0° to 40°C
0 to 50ppt
0° to 50°C
375 to 825mmHg, 500 to 1100mbar, 500 to 1100 hPa
BNC, Cinch
>500 hr.
±1%, ±1%mg/L, ±1%ppm
0 to 199.9% and 200 to 400%, 0 to 45mg/L, 0 to 45ppm
0.1%, 0.01mg/L, 0.01ppm
32° to 122°F
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