Customer Reviews For The DeNova Detect 10-Year Battery-Powered Natural Gas Alarm

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When should I replace this natural gas alarm?

The natural gas alarm should be replaced when the End-of-Service-Life (or EOL) Alert activates on your device. When this happens, the Trouble (Yellow) LED on the device will begin to blink twice every 10 seconds, and the audible alert will beep twice and say "Please replace detector" once every minute. This will occur approximately 10 years after device installation.

How do I mount the DD620NV Gas Alarm from DeNova Detect and what is the best location?

How do I open the battery cover and install the battery?

Open the battery cover on the back of the detector.
This cover slides out of place. To open, place both thumbs on the back of the battery cover where the battery cover hooks snap into place.
Push down where the battery cover snaps into place with your thumbs and slide the cover out. Some force is required.
Connect the included lithium battery by inserting the battery harness connector into the product.
Do NOT remove the plastic wrap surrounding the battery pack.
The battery connector has a large notch on it that faces up when installed correctly. There is only one way in which the connector can be installed. A small portion of the connector will be exposed when connected properly. You should hear it click into place.
After connecting the battery, place the battery with the labels facing down and the battery wires wrapping around the top side of the battery pack. For the best fit, it is recommended to have the negative (-) terminals face toward the outer edge of the detector.

What should I do if the DeNova Detect Natural Gas Alarm Sounds?

If at any time your natural gas detector's alarm sounds or if you ever smell or hear a natural gas leak:

Evacuate immediately and take others with you.
Do not use a phone; light a match; turn on or off lights, flashlights, or appliances; start a car; or do anything else that could create a spark or flame and cause the gas to ignite or explode.
Call 911 once you are safely outside the premises. You can report leaks anonymously.
Do not re-enter the premises until told to do so by authorities.

In the event of a gas leak, you may smell natural gas before the natural gas detector's alarm is activated. Whether or not the unit's alarm is sounding, if you smell gas, act fast. Report the leak once you are safely outside.

How do I recognize a natural gas leak?

Smell - A distinctive, strong odor similar to rotten eggs
See - A white cloud, mist, fog, bubbles in standing water, blowing dust, or vegetation that appears to be dead or dying for no reason
Hear - Roaring, hissing, or whistling

Will the natural gas alarm continue to operate if the power goes out?

Yes. Since the unit is powered by an internal battery, the natural gas detector should continue to function during a power outage.

Will the natural gas detector monitor my home for smoke, fire, or other gasses?

No, the natural gas detector will only detect the presence of natural gas in the area where the unit is installed. It will not detect fire, heat, smoke or the presence of any other gases, including carbon monoxide (CO).

Will the natural gas detector monitor all areas of my home for possible gas leaks?

No, the natural gas detector will only monitor the air in the area where the unit is installed. Natural gas leaks could be present in other areas and/or on other floors of your home or building without reaching the natural gas detector. As such, the unit's alarm may not sound in the event of a natural gas leak in a remote part of your home or building. Doors or the obstructions may also affect the rate at which natural gas reaches the natural gas detector. You should install separate gas detectors as needed in other areas of your home where natural gas appliances are used.

If the natural gas alarm's audible gas leak alarm is activated, will it be heard throughout my entire home?

No, the natural gas detector's alarm may not be heard in all rooms or situations. Since the natural gas detector is installed in a limited area of your home or building - such as the kitchen, for example - people sleeping or awake in other rooms or on other floors may not hear the unit's alarm in the event of a natural gas leak. People may not hear the alarm if the sound is at a distance and/or blocked by closed doors and/or other obstructions. Noise from traffic, stereos, radios, televisions, air conditioners, appliances, or other sources may also prevent people from hearing the unit. The unit's alarm is not intended for people who are hearing impaired.

Innovative 10-Year Battery Life and Safety

The DeNova Detect DD620NV is America’s first natural gas alarm powered by a 10-year sealed lithium battery, offering a decade of continuous protection without the need for battery replacements. This standalone home natural gas detector is a critical safety addition for any residence using methane, providing maintenance-free monitoring for ten full years. Because it is 100% wireless, you can buy natural gas alarms that offer flexible installation options, ensuring your home remains protected even during power outages.

Advanced MEMS Technology for Faster Warnings

Equipped with state-of-the-art Micro-Electromechanical System (MEMS) sensors, this natural gas leak detector provides the fastest notification on the market. It is calibrated to sound at a low 10% LEL (Lower Explosive Limit), granting residents an average of 11 minutes more escape time compared to traditional detectors. This advanced natural gas detector for home use is also specially engineered to be "spray-resistant," virtually eliminating the nuisance of false alarms caused by common household items like hairspray, cleaning agents, or cooking vapors.

Optimal Placement and Bilingual Alerts

Designed to meet the rigorous NFPA 715 installation standards, the DD620NV’s battery-operated design allows it to be mounted high on the wall within 12 inches of the ceiling where gas first accumulates. This natural gas detector features a powerful 85 dB siren accompanied by clear voice alerts in both English and Spanish, providing specific instructions to evacuate and call 9-1-1. Its easy-to-install bracket and compact profile make it the ideal choice for kitchens, basements, or any room with gas-burning appliances.