Reference only — this item is no longer available. This product has been discontinued and cannot be ordered. We keep the page online so the specifications and documentation stay available to anyone still running the equipment. Current replacements are listed further down.

Discontinued

Universal Security CO & Natural Gas Alarm (MCND401) Digital Display

Reference only — not for sale

Model	MCND401B
Manufacturer	Universal Security
Category	Carbon Monoxide
Status	Discontinued

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Product details (archived)

The information below is retained for reference only. This item is discontinued and cannot be ordered.

Single Installation. Double Protection! This revolutionary NEW compact plug-in alarm is perfect for new or replacement installations.
Dual Sensing Alarm Provides Protection Against 2 Deadly Household Threats: Carbon Monoxide and Natural Gas (methane).
Microprocessor intelligence is designed to eliminate nuisance alarms caused by non-hazardous sources.

Compact design, Covers only one outlet
Fast & easy installation, No wiring required
Quick activation pull tab Preserves battery life. Pre-installed battery is quickly activated
End-of-service life warning; Alarm signals when it is time for replacement (approximately 7 years from activation)
Single silence/test button; In the unlikely event of a nuisance alarm, the silence feature quiets a non-hazardous alarm
9 volt battery backup; Provides protection in the event of a power outage
Digital display screen; Provides carbon monoxide PPM (parts per million) levels & displays GAS
Memory button; Recalls peak CO level recorded
3 LED colors; Display status of alarm, power CO and gas

Specifications - Download Users Manual (PDF format)

Primary Power: 120 volt AC 60 Hz
Battery Backup: 9 volt Energizer alkaline battery
Audible Alarm: 85 dB at 10 feet
Sensor Type: Solid state, metal oxide
Gas sensor is calibrated to sound before 20% LEL
CO sensor is calibrated per uL2034 Required Alarm Points. Which are:
- alarm is exposed to 400ppm of CO, IT MUST ALARM BETWEEN 4 & 15 MINUTES
- alarm is exposed to 150ppm of CO, IT MUST ALARM BETWEEN 10 & 50 MINUTES
- alarm is exposed to 70ppm of CO, IT MUST ALARM BETWEEN 60 & 240 MINUTES
Operating Temperature Range: 0 degrees to 120 degrees F (-18 degrees to 48 degrees C)
Operating Humidity Range: 10% to 95% RH
LED's: alarm, power, CO, gas & service
Size: 4.38˝ x 1.55˝ x 2.50˝
Warranty: 5 year mfr limited

Regulatory Compliance:

Intertek-ETL (uL 2034 & uL1484 US)
Intertek-ETL (CSA 6-19.01) MCND401CN & MCN400CN
California State Fire Marshal (CSFM)
Housing and Urban Development (HUD)
Federal Housing Authority (FHA)

COMBINATION CO AND NATURAL GAS ALARM HAS BEEN DESIGNED WITH AN END OF SERVICE LIFE ALARM WHICH WILL SOUND AFTER APPROXIMATELY 7 YEARS OF OPERATION FROM INITIAL POWER UP.