Dahua Alarm Wireless Standalone Carbon Monoxide Detector.
 
High-performance Figaro electrochemical CO sensor to deliver accurate detection of carbon monoxide leakage and respond quickly
Long standby time, low power consumption, 10-year battery life
Support low battery warning, one-click silence, and self-test
Informative and easy-to-read CO concentration display in screen
Three indicator lights for displaying device status clearly
Working Principle
Collection Type : Carbon Monoxide (CO)
Sensor Type : Electrochemical
Alarm
Alarm Type : CO alarm, fault alarm, low battery warning
Alarm Volume : Over 85dB (A) at 3 m (9.84 ft)
Alarm Mode : Visual and audible alarm
Silence Function : Support
Silence Duration : About 45 seconds
Alarm Response Threshold : 50 ppm: 60 min–90 min / 100 ppm: 10 min–40 min / 300 ppm: < 3 min
Basic Parameters
Display : LCD
Indicator Light : LED (red/yellow/green)
LED Instruction : Alarm: Red indicator / Fault: Yellow indicator / Power: Green indicator
Power Supply 
Battery Life : 10 years
Power Source : 3V CR123A lithium battery (replaceable)
Operating Current : Monitoring Current: ≤20uA / Alarm Current: ≤10mA
Operating Ambient
Operating Environment : Indoor use only
Operating Temperature : –10°C to +40°C (+14°F to +104°F)
Operating Humidity : ≤95% RH (non condensing)
Appearance 
Color : White
Materia : PC + ABS
Dimensions : 116.4 mm × 71.7 mm × 28.3 mm
Weight : 125 g
Installation : Wall Mount
Certification
Certifications : TÜV and CE listed
Compliance Standard : EN 50291-1:2018
 
Excellent production, novel appearance, delicate and compact, simple and convenient installation