Overview
The JF2121 ultrasonic oxygen sensor is mainly used in the detection of oxygen concentration and flow in oxygen concentrators and related products. It uses ultrasonic sensors to detect the propagation speed of ultrasonic waves in gas, and uses temperature compensation to accurately calculate oxygen concentration and flow.
Key Features
- Good consistency
- Real-time response
- High precision
- Good stability
- long lifespan
- Calibration-free
- LED indicator light
Applications
- Household oxygen generator
- Medical oxygen concentrator
Technical Specifications
| Model No. | JF2121 | |
| Detection method | ultrasound | |
| Detection gas | O2 | |
| Concentration | Measuring range | 20.5%~95.6% |
| Measurement accuracy | ±1.5%FS @(5~45)°C | |
| Resolution | 0.1% | |
| Response time | ≤1.5s T90 (Can be customized according to customer requirements, the fastest≤0.1s) | |
| Flow | Measuring range | 0~10L/min |
| Measurement accuracy | ±0.2L/min@(5~45)°C | |
| Resolution | 0.1L/min | |
| Response time | ≤1.5s T90 (Can be customized according to customer requirements, the fastest≤0.1s) | |
| Working voltage | 4.5~13.2V | |
| Average current | ≤30mA | |
| Working environment | 0~55°C; 0~95%RH( no condensation ) | |
| Storage environment | -30~65°C; 0~95%RH( no condensation ) | |
| Output signal | UART(3.3V) | |
| Dimensions | Standard version: 78.2mm*30mm*20mm(L*W*H) Long screw version: 78.2mm*30mm*30.4mm(L*W*H) | |
| Weight | 20g | |
| Lifespan | ≥5 years |



