Daytech Smoke Detector Fire Detector Photoelectric Smoke Sensor Alarm Come With 5Years Lithium Battery SM28

【Product Introduction】Standalone photoelectric smoke detector use high-performance ultra-low power consumption smart microprocessor working with the precise photoelectric sensor to process the collecting smoke concentration independently:Low-power consumption,stable performance,beautiful and durable casing.The smoke detector is powered by 1pc 3V CR17335 lithium battery,continuous for more than 10 years.This detector is widely used in internet bar,dancing halls,cafes,leisure rooms,residential areas etc.【Product Parameters】Power Supply：1pc 3V CR17335 Lithium BatteryAlarm Sound Pressure：80dB at 3m straight aheadBattery Life：10 yearsWorking Environment：-10℃~50℃，＜95% RH (No condensation) Output Method：sound and flashVentilating Speed：more than 5M/S【Package Listing】3Smoke Detector(Batteries included)3Self-tapping Screws1*English User Manual