Internal Sensor


1 Touch Calibration


Ergonomic Design


5000+ Hour Battery Life


MaxO2+A AII-2000 Palm Teledyne AX/MX 300 MSA OX I, IA, II, III, 3000
24month warranty 12month warranty 24month warranty 0no warranty
5,000 hrs battery 2 AA's (continuous use) 13,000 hrs battery 2 AA's (continuous use) 2,000 hrs battery 3 AA's (continuous use) 4,000 hrs battery 1 9-Volt (continuous use)
6 ozWeight 7 ozWeight 1 lbWeight 7 ozWeight
0-100%Measurement Range 0-100%Measurement Range 0-100%Measurement Range 0-100%Measurement Range
3.0" x 4.0" x 1.5"Product Dimensions 2.72" x 4.1" x 1.35"Product Dimensions 5.5" x 3.5" x 3"Product Dimensions 2.5" x 4.63" x 1.5"Product Dimensions
Max-250+Compatible Maxtec Sensor NoneCompatible Maxtec Sensor Max-7Compatible Maxtec Sensor MAX-13 & Max-14 Compatible Maxtec Sensor

MaxO2+A Overview

The MaxO2+A analyzer was designed for simplicity and portability—ideal for checking the accuracy of delivered oxygen percentage in concentrators. Its patented, ergonomic design fits comfortably in your hand and features a simple, one-touch calibration and ON/OFF control. The MaxO2+A will calibrate to room air (20.9%) or 100% oxygen. For applications that require an external sensor, check out our MaxO2+AE.

  • Features an integrated MAX-250+ long life sensors
  • 5,000+ hours operation on 2 AA batteries
  • Easy one-touch calibration
  • Patented ergonomic design
  • Quickly adapts to bore tube applications
  • 24-month warranty on both the analyzer and sensor

Product Accessories*

*Accessories marked with dotted border NOT included.

  • Max-250+ R125P02-011
  • 15MM Tee Adapter RP16P02
  • Flow Diverter R110P10-001
  • Barbed Adapter R207P17
  • Perfusion Adapter R103P90
  • Dovetail Bracket R217P23

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If you have any questions or would like to learn more about our MaxO2+A, simply fill out the form below and we will get ahold of you shortly.

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