Model 65
Affordable Solution For Non-Flammable Gases
The MODEL 65 is a Percent Oxygen Analyzer for non-flammable gases in a general purpose environment. The unit functions as a standalone sensor and utilizes zirconium oxide sensor technology to deliver reliable readings that are not affected by barometric or temperature changes. Being offered as a low cost solution, the MODEL 65 cannot connect to the COMMAND CENTER software or access any AMI advanced features.
Technical Specifications
WEIGHT | Installation |
<1 lbs (0.5 kg) | Integrated as a Standalone Oxygen Sensor |
POWER |
7 - 28VDC (nominally 24VDC) |

OUTPUT RANGE | AMBIENT OPERATIONAL TEMPERATURE | FLOW RATE | |
Standard | Optional | ||
0 – 25.0%0 – 50.0% 0 – 90.0% | 0°F to 130°F (18°C to 54°C) | 0.1 to 5.0 SCFH |
90% UPSCALE RESPONSE TIME | REPEATABILITY | APPROVALS |
<13 sec | ±1% of range or ±0.2 ppm of oxygen, whichever is greater | Pollution degree 2, Installation category II |
ACCESSORIES |
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Features & Benefits

MODEL 65 Percent Oxygen Probe
The MODEL 65 Percent Oxygen Probe is a perfect low cost, rugged, compact solution for OEM applications or integration into control systems for general industrial processes. The unique zirconium oxide sensor in this probe provides a 10-year life expectancy. The probe is designed for measuring percent oxygen levels exclusively in NON-FLAMMABLE gases. The Model 65 is simple to mount indoors or outdoors and provides a very accurate, stable, long life, linear analog output signal over a 0-25% range. Optional output are ranges also available.

Incredible Value
The MODEL 65 is designed to be integrated into an operator’s system and function as a standalone oxygen sensor. It is virtually maintenance free, extremely accurate and stable over a wide temperature range (0-130 0 F) and immune to changes in barometric. Additionally, it uses a unique zirconium oxide sensor with a 10-year life expectancy, requiring only annual calibrations.
Perfect Percent Oxygen OEM Solution
The MODEL 65 is ideal for OEM applications measuring percent oxygen levels in inert gases, such as: gas blanketing, nitrogen/oxygen generators, refrigeration units and many others. At only 2.0” long x 2.2” in diameter (51mm x 56mm), this dependable, rugged, compact probe can virtually be mounted anywhere.
Available Accessories
Model 65 Downloads
- Data SheetMODEL-65-Data-Sheet.pdf (151 KB)
- Operator ManualMODEL-65-Operator-Manual.pdf (530 KB)
Industry Applications