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US-09-CO-NO2 dual gas detector (CO and NO₂) for garages. Two alarm levels AL1/AL2. The screen displays real-time concentrations.

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Product descriptionThe US-09 CO and NO₂ dual gas detector is designed to ensure a safe environment in rooms where carbon monoxide (CO) or nitrogen dioxide (NO₂) is present. The product's OLED display shows real-time concentrations, and the two-level alarm (AL1 and AL2) allows for a timely response by activating ventilation or other equipment. Benefits for the customer: The combination of CO and NO₂ alarms in a single device reduces installation costs. The OLED display allows real-time monitoring of gas levels. Quick response and two-level alarm – effective risk management. Easy integration into ventilation, alarm, or automation systems via relay outputs.
PurposeMonitors carbon monoxide and nitrogen dioxide concentrations in confined spaces and signals when gas concentrations reach hazardous levels.
work environmentUnderground car parks, logistics centres, access tunnels, technical rooms with combustion equipment, boiler rooms, generator rooms, heat distribution units, warehouses, workshops, service areas.
Signals typeSound signal (dB), visual signal (LED indicators).
Outputs/Interfaces4 relatives outputs, each AL
ScreenOLED - 2.4
SensorsCO ir NO2
Power voltage230V AC_12V, 1A; DC
CO concentration first average level(AL1) 35 ppm
CO concentration anthrax variable level(AL2) 200 ppm
CO measurement boundaries0...300ppm
NO2 concentration first average level(AL1) 2 ppm
NO2 concentration second emergency level(AL2) 5 ppm
NO2 measurement boundaries0...30ppm;
measurement accuracy10%
preparation time for work time60 sec
device work(0 ...+50) C; 5...95%RH
dimensions120x200x60 mm
Serviced area300m2
ComplianceEN 50545-1, EN 61010-1, EN 50270, EN 61000
WARRANTY24 mėn
Specifications LT
Specifications EN

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