Smoke and CO Monoxide Composite Alarm Two-In- Smoke Dete

Durable and easy to install.
Fine workmanship and perfect style.

1. Outline structure, size: 37 x 107mm
2. Working power supply: DC4.5V 3 AA batteries.(without)
3. Applicable es: smoke, carbon monoxide.
4. Sampling : natural diffusion
5. rs: semiconductor rs, electrochemical rs.
6. Alarm setting value: Smoke 0.3db/M.
Carbon monoxide alarm value:
Concentration Less than 50 no alarm
Concentration ≥50PPM~≥99PPM, alarm within 60-90 minutes.
Concentration ≥100PPM~≥299PPM, alarm within 10-40 minutes.
Concentration ≥300PPM, alarm within 3 minutes.
7. Environmental conditions: indoor temperature -10°C-55°C
Relative humidity ≦95% RH
8. Response time: less than
9. Recovery time: less than
10. Alarm mode: sound and light alarm
11. Alarm volume: ≧70dB (1 meter in front)
12. Service life: 3 years
13. Standby current: Less than 105uA
14. The green light flashes once every 15 seconds.
Material: ABS
colour: white

Package Contents:
1 x smoke detector
2 x screw
2 x plastic plug

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.