Sell 73mU High Sensitive Home Security Smoke Detector Sensor Fire Alarm - Free Battery best price

This is a high quality photoelectric smoke detector suitable for the home.Unlike the cheaper ionisation type smoke detectors, photoelectric detectors do not have any issues with disposal once the detectors has come to the end of its life cycle and also have a longer life span.The detector features photoelectric detection which has been proven to detect smouldering fires faster than their ionisation counterparts.# This type of detector is great for most aplications provided they are not extremely drafty or dusty.These detectors are powered from a 9VDC battery which is supplied with the unit.Smoke Detectors must be tested regularly and the battery changed annualy to ensure correct operation!Product Specification:Sound Level: =85dB/m Power: 9V non-rechargeable battery (Included) Alarm Current: Standby Current: 300A Operating Temperature: -5 ~ 38 Degree Celsius Operating Humidity: 95 percent RH Smoke Sensitivity: 2.36 percent /FT add and subtract 1.251 percent /FT OBS Detecting Area: 20 square meter Size: 11 x 11 x 3.2cm Material: ABS plastic Color: White Product Feature:Excellent stability High sensitivity Alarm test button for easy testing Loud 85dB audio alarm Low battery indicator Alarm Indication:Red LED flash Easy to install with mounting hardware included Designed for the fastest possible installationPackage Content: 1x Wireless Smoke Detector 1x Free 9V battery 2x Screw 1x User Mnual