| Measuring principle | ion current |
| Display mode | 320×240 graphic dot matrix color LCD |
| Measuring range | 0 ~ 40.0% O2 |
| Measurement accuracy | ≤ ± 1% FS |
| Repeatability | ≤±1% |
| Response time | T90 ≤ 30S |
| Analog output |
4-20mA.DC (non-isolated output, load resistance less than 500 ohms) 1 way programmable dry contact passive alarm output, contact maximum capacity 220VAC/2A 1 way RS485 |
| Power supply | AC220V ± 10% |
| Sample gas temperature | -10 ~ +50℃ |
| Ambient humidity | <80% RH |
| Sampling method | free diffusion |
| Oxygen pressure | ≤1MPa |
| Dimensions | 150mm × 206mm × 70mm (H × W × D) |
| Service life | ≥5 years (under normal use conditions) |
| Installation method | wall-mounted |