New Design Best New Cheap Smoke Detector Alarm

New Design Best New Cheap Smoke Detector Alarm Specification Model:  CA-163 Sensor:  Photoelectric detector Working voltage:  9V battery /12vdc Working current: <10mA Working environment: -10℃ — 50℃； Humidity:<97% Buzzer volume: 85dB/m Alarm output: NC/NO Detection area: 20 ㎡ Installation:  Ceiling mounted Package dimension:  12*12*3.5cm Weight: 120g Specification Model:  CA-162 Sensor:  Photoelectric detector Working voltage:   9V battery /12vdc Working current:   <10mA Working environment:   -10℃ — 50℃； Humidity:<97% Buzzer volume:   85dB/m Alarm output:  NC/NO Detection area:   20 ㎡ Installation:  Ceiling mounted Package dimension:   12*12*3.5cm Weight: 120g Specification Model:  CA-164 Sensor:  Photoelectric detector Working voltage:    9V battery /12vdc Working current:   <10mA Working environment:   -10℃ — 50℃； Humidity:<97% Buzzer volume:   85dB/m Alarm output:  NC/NO Detection area:   20 ㎡ Installation:  Ceiling mounted Package dimension:  12*12*3.5cm Weight: 120g Specification Model:  CA-161 Sensor:  Photoelectric detector Working voltage:    9V battery /12vdc Working current:   <10mA Working environment:   -10℃ — 50℃； Humidity:<97% Buzzer volume:   85dB/m Alarm output:  NC/NO Detection area:   20 ㎡ Installation:  Ceiling mounted Package dimension:  12*12*3.5cm Weight:  120g Specification Model:  CA-160 Sensor:  Photoelectric detector Working voltage:    9V battery /12vdc Working current:   <10mA Working environment:   -10℃ — 50℃； Humidity:<97% Buzzer volume:   85dB/m Alarm output:  NC/NO Detection area:   20 ㎡ Installation:  Ceiling mounted Package dimension:  12*12*3.5cm Weight:  120g Specification Model:  CA-165 Sensor:  Photoelectric detector Working voltage:   9-24VDC Working current:   <10mA Working environment:   -10℃ — 50℃； Humidity:<97% Alarm output:  NC/NO Detection area:   20 ㎡ Installation:  Ceiling mounted Weight: 210g Specification Model:  CA-169P Sensor:  Photoelectric detector Working voltage:   9-24VDC Working current:   <10mA Working environment:   -10℃ — 50℃； Humidity:<97% Buzzer volume:   85dB/m Alarm output:  NC/NO Detection area:   20 ㎡ Installation:  Ceiling mounted Package dimension:  11*11*6cm Weight: 210g Specification Model:  CA-168 Sensor:  Photoelectric detector Working voltage:  9V battery /12VDC Working current:   <10mA Working environment:   -10℃ — 50℃； Humidity:<97% Buzzer volume:   85dB/m Alarm output:  NC/NO Detection area:   20 ㎡ Installation:  Ceiling mounted Package dimension:  12*12*3.5cm Weight:  120g