Smoke Alarm Fire Smoke Detector Home Independent Wireless Smoke Detector
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Smoke Alarm Fire Smoke Detector Home Independent Wireless Smoke Detector

- WHITE 347141701

7.21
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Photoelectric smoke detectors are referred to as detectors.
The principle is to use the principle of refracting infrared light in smoke to detect fire.
The circuit is mainly composed of infrared emitting part and receiving part.
The transmitting tube and receiving tube are placed in the optical maze, and the optical maze can be shielded.
Outside stray light interferes, but does not affect the entry of smoke.
In the smokeless state, the receiving tube only receives very weak infrared light.
When there is smoke entering, the received light signal is enhanced due to scattering, and when the smoke reaches a certain concentration, the detector outputs an alarm signal.
Product parameter
Power: 9V alkaline or carbon battery
Operating current: quiescent current is less than 10μA, working current is between 20 - 25μA.
Smoke sensitivity: Meets UL 217 standard.
Working temperature: -10 ° C ~ +50 ° C
Relative humidity: ≤ 95 percent RH (40 °C ± 2 °C)
Buzzer sound level: 85 decibels at 10 feet.
Battery life: about a year.

 

Specification

Dimensions and Weight

Package size: 12.00 x 12.00 x 4.50 cm / 4.72 x 4.72 x 1.77 inches
Package weight: 0.2000 kg
Product size: 10.70 x 10.70 x 3.80 cm / 4.21 x 4.21 x 1.5 inches
Product weight: 0.1600 kg

Package Contents

Package Contents: 1 x Alarm Without Battery

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