
· High-performance Figaro electrochemical CO sensor to deliver accurate
detection of carbon monoxide leakage and respond quickly
· Long standby time, low power consumption, 7-year battery life
· Three separate LED indicators to provide clear and apparent working
status illustration
· Built-in high-volume buzzer with alarm volume 85dB (A) at 3 m (9.84 ft)
· Support low battery warning, one-click silence, and self-test
· Peak level display function to inform users extra potential hazards in
home
· Informative and easy-to-read CO concentration display in screen
· Wireless interconnected with maximum of 24 devices
· End of life warning: LCD display shows End with the buzzer beeping and
LED indicator flashing three times per minute
Alarm | DHI-HY-GC20B-R8
System Overview
Wireless Interconnected Carbon Monoxide Alarm is designed to
connuously monitor carbon monoxide concentraon. Adopng
advanced electrical technology, a built-in high-volume buzzer, it
responds quickly and becomes highly sensive with stable performance
and low false alarm. Once the surrounding CO concentraon reaches
the alarm value, it will promptly send out an audible and visual alarm
signal to remind the user to take immediate measures. Moreover,
the alarm signal will be pushed to every alarm in the interconnected
network and they will raise the alarm in unison.
DHI-HY-GC20B-R8
Wireless Interconnected Carbon Monoxide Alarm
Scene
Applicaon scenarios include homes, restaurants, hotels and other
places that require carbon monoxide detecon.
www.wisualarm.com/en/
Technical Specificaon
Working Principle
Collecon Type Carbon Monoxide (CO)
Sensor Type Electrochemical
Alarm
Alarm Type CO alarm, fault alarm, low baery warning
Alarm Volume Over 85dB (A) at 3 m (9.84 )
Alarm Mode Visual and audible alarm
Silence Function Support
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
Operating Frequency 868MHz
Radio Signal Range Up to 1000 m (3280.84 ) in open air
Maximum Number of
Interconnected Units
24pcs
Power Supply
Baery Life
7 years
Operating Voltage 3V DC
Operang Current
Monitoring Current: ≤20uA
Alarm Current: ≤20mA
Operang Ambient
Operating Environment Indoor use only
Operating Temperature –10°C to +55°C (+14°F to +131°F)
Operating Humidity ≤95% RH (non condensing)
Appearance
Color White
Material PC + ABS
Dimensions
116.4 mm × 71.7 mm × 29.1 mm (4.58" ×
2.82" × 1.15")
Weight 125 g (0.28 lb)
Technical Specificaon