Medical Oxygen Concentration Measurement with UMH Series Analyzers
The UMY Medical UMH Series Oxygen Analyzer is designed to measure oxygen concentration from 0% to 100% in medical applications. Three available models offer different measurement functions: the handheld UMH-IA, the alarm-equipped handheld UMH-III, and the UMH-V ultrasonic model with oxygen concentration and flow-rate measurement.
Choose the model according to the required sensor type, display resolution, alarm functions and measuring conditions. Please confirm the selected configuration before ordering.
Choose the Appropriate UMH Model
All three models measure oxygen concentration. Sensor technology, alarm functionality and flow measurement vary by model.
Key Features
0–100% Oxygen Measurement
All UMH series models measure oxygen concentration across the 0–100% range.
Two Sensor Technologies
UMH-IA and UMH-III use galvanic fuel-cell sensors; UMH-V uses an ultrasonic oxygen sensor.
Alarm Option
UMH-III provides adjustable high and low oxygen alarm settings with an audible buzzer.
Additional Flow Measurement
UMH-V measures gas flow from 0 to 240 L/min, alongside oxygen concentration.
Technical Specifications
| Specification | UMH-IA | UMH-III | UMH-V |
|---|---|---|---|
| Oxygen concentration range | 0–100% | 0–100% | 0–100% |
| Oxygen resolution | 0.1% | 0.1% | 1% |
| Sensor type | Galvanic fuel cell | Galvanic fuel cell | Ultrasonic oxygen sensor |
| Response time | Approx. 15 s to reach 90% at 23°C | Approx. 15 s to reach 90% at 23°C | ≤1 s |
| High / low oxygen alarms | Not listed | Yes, audible buzzer | Not listed |
| Flow measurement | Not listed | Not listed | 0–240 L/min; 1 L/min resolution |
| Operating temperature | 15–40°C | 15–40°C | 5–55°C |
| Power | 3 × AAA alkaline batteries | 3 × AAA alkaline batteries | Rechargeable 3.7 V, 5200 mAh lithium battery |
| Charging interface | Not specified | Not specified | USB Type-C |
| Sensor service life (typical) | 2 years | 2 years | 5 years |
| Dimensions / weight | 84 × 130 × 31 mm; approx. 0.25 kg | 84 × 130 × 31 mm; approx. 0.25 kg | Not stated in the brochure |
- Specifications are taken from the provided UMY oxygen analyzer brochure; values may depend on calibration and test conditions.
- The brochure lists an oxygen accuracy of ±3% FS for UMH-V under specified conditions; accuracy notation for UMH-IA / UMH-III should be confirmed with the supplier before publication.
- Sensor lifetime is an expected value for typical applications, not a warranty term.
Model Selection & Before Ordering
For basic handheld oxygen concentration checks, review UMH-IA. For applications requiring high and low oxygen alarms, consider UMH-III. Where both oxygen concentration and gas flow need to be measured, consider UMH-V.
For an accurate quotation, please provide the model, quantity, destination country, measuring gas and required operating conditions. Confirm calibration needs, accessories and any required documents before ordering.
Request a UMH Series Oxygen Analyzer Quote
Contact UMY Medical about UMH-IA, UMH-III or UMH-V. Tell us your preferred model, quantity and destination country so we can review your requirements and prepare a quotation.










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