Model GB300 – Percent Portable Oxygen Analyzer

Teledyne’s hand-held GB300 Portable Percent Oxygen Analyzer is designed for use in a wide variety of applications from diving to fine tuning boilers.

Lightweight and easy to use, the GB300 incorporates Teledyne’s own Micro-fuel Cell sensor for quick and accurate analysis of oxygen.

This maintenance-free, sealed, electrochemical cell is specific to oxygen, insensitive to flow rate, and has a 90% response in less than 10 seconds. At the end of its life, the cell is discarded and replaced like a flashlight battery.

Constructed of high impact resistant materials, the GB300 provides unparalleled performance under the harshest conditions. The unit is powered by 3 AA batteries which should last for at least 2000 hours of use.


  • Battery charge indicator
  • One key operation (On / Off / Cal)
  • Auto diagnostics with error codes to simplify troubleshooting
  • Instrument carrying case
  • Teledyne’s own I-17 sensor
  • Sensor interconnection cable
  • Barbed hose adapter (P/N F-1717) which allows for connection of 1/4″ flexible tubing
  • T adapter (P/N A-268)
  • Runs on 3 AA batteries


Measuring range: 0-100% oxygen
Accuracy: ±2% of FS at constant temperature and pressure
Response time: 90% of step change in less than 10 seconds
Operating temp: 0 to 40°C
Power: 3 AA alkaline batteries
Battery life: Minimum 2000 hours
Sensor type: I-17
Sensor life: 36 months in air
Sensor cable: Extends to 10 feet (3m)
Weight: 1 lb. (420 gr.)
Dimensions: 5.5” H x 3.5” W x 3” D (139.7 x 88.9 x 76.2 mm)
Signal output: 0-1 VDC
RFI hardened: Yes
Warranty: 12 months covers defects in material and workmanship; excludes sensor life
Approvals: CE mark


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