Carbon Monoxide Detector

General Description

Carbon Monoxide is as an invisible killer for its colorless, odorless, tasteless and highly toxic gas. It will reduce the oxygen in body’s hemoglobin and cause damage to the brain. Our NDKA1 and NDKB1 are equipped with a precise and low power-consumption sensor. With high efficiency microprocessor-based analysis, it can be triggered under different carbon monoxide concentrations.


  • Test button for alarm simulation.
  • Green LED to confirm the unit is under normal operation.
  • Two modes of the Alarm LED in visible and audible warning to easily identify the status.
  • Three modes of the Fault LED in visible and audible warning to easily identify the causes.
  • Triple-color LED display with high brightness enables viewers to easily identify the status of detector.
  • A set of relay output: COM. N.O. N.C. (NDKB1)


  • Home: The heating installation such as gas water heater or stove is easy to combust incompletely and then produces CO.
  • Parking lots and garage: the cars, scooter or engine machine exhausts fumes with high concentration of CO in an enclosed space.
  • Fire: Smolder is a kind of incomplete combustion. It often occurs before and after the fire as a disaster and produce a large amount of CO.



NDKB1 Carbon Monoxide Detector

Model NDKB1
Type System
Power Source 12 ~ 24V DC
Standby Current 800uA
Alarm Current under 40mA
Sensitivity  50 ppm: 60~90 min. 100 ppm: 10~40 min. 300 ppm: 0~3 min.
Alarm Sound 85dB/3M and above
Ambient Temperature -10 ~ +50
Material  Fire-proof plastic
Color White
Dimensions 102 mm(Dia.) x 45mm(H) 
Weight About 150g

Order Information

Model Type Power Source
NDKA1 Standalone 3V DC Battery
NDKB1 System 12-24V DC