3 #5 Battery can use
This product SR-821THS is an intelligent carbon monoxide smoke composite detector, which adopts a micro-processing control and electrochemical sensor, featuring high stability, low power consumption, and small sensitivity drift. It is mainly used in places where carbon monoxide gas leakage and fire may occur, ensuring personal life safety.
Main features
* Adopt high-reliability electrochemical sensor and infrared photoelectric sensor
* LCD liquid crystal display density
* 3*1.5V AA battery powered
* Low current consumption, long standby life
* Battery low battery prompt
* Alarm memory function
* Alarm pause (silent mode)
* Sound and light alarm / LED indicating alarm
* SMT industrial manufacturing, strong stability
Technical specification
| Model No. | SR-821THS
|
| Operating voltage | 3*1.5V AA battery (3 AA 1.5V) |
| Quiescent current | <80uA |
| Alarm current | <30mA |
| Alarm output | sound and light tips |
| Sensor | Electrochemical Carbon Monoxide Sensor and Infrared Photoelectric Sensor |
| Working temperature | 0-50 °C |
| Working humidity | relative humidity 10%-95% |
| Carbon monoxide gas detection concentration | 000~999 PPM |
| Smoke sensitivity
| 0.1% db/m-9.9% db/m |
| Battery display | low battery alarm |
| Dimensions | 104*39mm |