| Parameter | Specification | Parameter | Specification | 
|---|---|---|---|
| Product model | SA-M203 portable multi gas detector | Data logging (optional) | Continuously data logging (1900 data at 0.1-10 configurable interval) | 
| Sensor type | Infrared, catalytic, electrochemical | Charging time | 4-5 hours | 
| Size & weight | 130*66*30mm / 300g | Continuous working time | >12h | 
| Battery | Rechargeable lithium | Working Temperature | -25℃~+55℃, short time: -40℃~+55℃  |  
| Alarms | LED alarm @ ≥20cm Buzzer alarm ≥95dB @30cm Low power alarm  |  Sensor lifetime | Infrared: ≥5 years Electrochemical: ≥2 years Catalytic: ≥1 year  |  
| Charging | By AC adapter or 5V USB port | Ex proof sign | Exibd Ⅰ | 
| Display | Color LCD / OLCD | Sampling | Natural diffusion | 
| LCD reading | Real-time concentration, battery indicator, date  |  IP degree | IP54 | 
| Backlight | Always ON | Approval | Ex, MA, CMC, CE | 
 
 
 
 