Optical smoke detector via radio

specs

Detection method: Optical sensor Sensitivity range: 0.105 ~ 0.165dB / m (EN 14604) RF frequency: 868MHz Transmission method: Fully encrypted rolling code Transmission of up to 300 meters in open field Alarm sound level: 85db / 3m LED indicators: Power, fault and alarm Sensor power: 2 x 1.5V, AA batteries (not replaceable), with a lifespan of up to 10 years RF transmitter power supply: 1 x 3V battery, CR123A (replaceable), with a lifespan of up to 2 years Consumption: 25 μA in standby, 120 mA in alarm -10 ° C ~ 50 ° C operating temperature Relative humidity 5% ~ 90% Dimensions: Ø120 x 52.45 mm Weight: 183g Regulations: EN 14604 Certifications: CE, environmental class II