Smoke and Carbon Monoxide Detector Fire Detector with Low Battery Alarm Smoke CO Combo Alarm (without Batteries)

• Backlit digital display alarm concentration of smoke and carbon monoxide gas (PPM)
• With backup battery function, 3 x 1.5V battery can be used for the power supply
• Adopt high-reliability electrochemical carbon monoxide sensor and infrared photoelectric sensor, efficient and stable inductive transmission
• Low current consumption, long standby life, low battery indication
• Sensor failure self-test function, more reliable

Specifications:

• Power: 3 AA batteries (not included)
• Sensors: Electrochemical carbon monoxide sensor and infrared photoelectric sensor
• Working temperature: 0-50°C
• Working humidity: relative humidity 20~95% R.H
• Detection concentration: 000-999ppm
• Sensitivity level: 5ppm
• Error: +/-10%
• Concentration reading during normal operation: 000ppm
• Concentration reading when alarm: 030-999ppm
• Size: 105mm*38mm
• Battery display: low battery alarm