2015 Hot Smart House Stable Photoelectric Wireless Smoke Detector for Fire Alarm Sensor for Home Security
Feature: Excellent stability. High sensitivity. Alarm test button for easy testing. Low battery indicator. Alarm Indication: Red LED flash. Designed for the fastest possible installation. This small gadgets will alert and warn people stay far away from danger field when it detected smoke. This product named Photoelectric detector (hereinafter called detector) detects the smoke by a couple of infrared diodes. The principle of detecting is granule in the smoke can reflect infrared light. Infrared diodes are placed in the special chamber. The chamber can shield external light, but don’t affect the smoke into it. While have no smoke, the diode can receive very weak infrared light. When the smoke entering the the chamber, diode can receive more and more light, when the smoke attains the certain density, the detector can give out alarm signal. In order to reduce the interference and lower power consumption, the emitting circuit adopts the pulse signal. The detector adopts the special structure design and ASIC, has the dustproof, mothproof and anti outside light interference feature etc. The detector is suitable for detect the smoke in house, shop, hotel, restaurant, office building, school, bank, library, computer house and storehouse etc. Technical Specification: 9V battery ( NOT Included ). Sound Level:>=85dB/m Alarm Current: <=20mA Standby Current: 300μA Operating Temperature: -10°C ~ +50°C Operating Humidity: 95%RH Detecting Area:20 square meter Smoke Sensitivity: 2.36%/FT +/-1.251%/FT OBS Package Included: 1 x Wireless Smoke Detector we don’t offer retail box.
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Name | Rating | Feedback |
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Shipping Company | Shipping Cost | Estimated Delivery Time |
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3 - 7 days | ||
3 - 7 days | ||
5 - 14 days | ||
Post Air Mail | Free Shipping | 15 - 45 days |
Return Policy | If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller. N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion. |
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Seller Service | On-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe). |
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