Description

smoke detectors

ALarming pattern and indication

 

Green and red LED lights that indicate normal operation and alarm status.

· The unit will sound ‘chirp’ and red LED flashes once as power up.

· Power saving feature: The alarm sound pattern is 4 beeps every 5 seconds in the beginning. In 4 minutes, it will change to 4 beeps every minutes to save the battery.

· 3 digits LCD is optional. ‘Lb’ on the LCD indicates low battery(need replacement) and ‘999PPM’ on the LCD to indicate CO level over 999ppm. In normal condition, LCD is not lit. It will be lit as test/reset button pressed and as CO concentration exceeds 30ppm.

· In 3 minutes after the batteries installed, the unit start to detect CO.

Green LED: The green LED flashes every 30 seconds to indicate the unit is operating properly.

Red LED: When a dangerous level of carbon monoxide is detected the red LED will flashes and the alarm pattern will sound.

· The CARBON MONOXIDE (CO) alarm monitors the air for the presence of CO. The alarm will sound and be accompanied by the flashing red LED light when there are high levels of CO present.

 

Detection of carbon monoxide

Low voltage compensation
Installation: ceiling mounted
Sensitive gas;CO, carbon monoxide
Adopts nano technology sensor.reduce missing alarm and false alarm.
Network signal with NO, NC, and DC level output methods.
Fit for most light-current system,and ancillary use.
high stability and long-pife span.
Ceiling mounted,with goodness in appearance. low consumption, can detect all directions.
Automatically reset after alarm situation eliminated.

Specification of LZ828-27 smoke detectors

● Operating voltage: DC3V 1 *CR17335battery
● Sound pressure level: 80 decibels (3M directly in front)
● Battery life: 10 years
● Quiescent current: ≤ 10uA
● Alarm current: ≤15mA
● Operating temperature: -10 ℃ ~ +50 ℃
● Working humidity: ≤ 95% RH”
● Size:50.5*32*42Cm