Senseair Sunlight R290 is a robust NDIR sensor module engineered for demanding environments where vibration resistance and explosion safety are paramount. Utilizing a solid-state, LED-based design, it delivers high precision and low power consumption—ideal for applications using low GWP A3 class refrigerant R290 (propane).
Manufactured for high volume production, every sensor is individually calibrated and each component and manufacturing step is fully traceable via serial number, ensuring consistent quality. Integrated with UART (Modbus) and I2C interfaces and equipped with the self-correcting ABC (Automatic Baseline Correction) function, the sensor remains maintenance free over at least a 15‑year lifespan.
| Article number | 009-4-0002 |
| Operating principle | Non-dispersive infrared (NDIR) |
| Measured gas | R290 |
| Measurement range | 0–100% LFL |
| Accuracy | ±2.5% LFL |
| Operation conditions | -40 – 70 °C, 0 – 95% RH (non-condensing) |
| Power supply | 3.05 – 5.50 VDC |
| Peak current | 94 mA |
| Average current | 1-94μA |
| Communication | I2C, UART |
| Compliance | IEC 60079-29-1, IEC 60335-2-40 Ed.7, UL 60335-2-40 Ed.4 |
| Maintenance | Periodic Zero calibration or ABC calibration |
| Life expectancy | 15 years in normal commercial environments |
| Dimensions | 34 x 21 x 12 mm (L x W x H) |
| Weight | 5 g |
| Storage conditions | -40 - 85 °C |
Disclaimer : Please refer to product specification for the complete technical details.
