When it comes to safety in residential and commercial properties, a reliable natural gas alarm is non-negotiable. The AJ-989 Methane Detector is engineered to meet the strictest standards, including UL 1484 certification and compliance with New York City Local Law 157. Whether you are a homeowner or a facility manager, this device ensures peace of mind through advanced detection technology.

Why Choose the AJ-989? Unlike standard detectors, the AJ-989 features a sealed 10-year battery, eliminating the need for constant battery replacements and ensuring continuous protection against methane leaks.

Key Features of the AJ-989 Natural Gas Alarm

The AJ-989 is designed with both safety and convenience in mind. Here are the standout features that make it a top choice for NYC properties:

  • 10-Year Built-in Battery: Sealed lithium battery provides a decade of continuous power. No more low-battery chirps in the middle of the night.
  • UL 1484 Certified: Meets the rigorous safety standards for residential gas detectors in the United States.
  • NYC Local Law 157 Compliant: Specifically designed to meet the requirements for gas leak detectors in New York City buildings.
  • Loud Audible & Visual Alerts: Features an 85dB+ siren and a flashing LED indicator to ensure alerts are noticed immediately.
  • Digital Readout: Displays precise gas concentration percentages, allowing you to monitor air quality in real-time.
  • Automatic Shut-Off Integration: High-grade systems can connect directly to safety valves to cut off gas flow immediately upon detecting unsafe levels.

Technical Specifications

Specification Details
Model AJ-989
Detected Gas Methane (Natural Gas)
Power Source 10-Year Sealed Battery
Certification UL 1484
Compliance NYC Local Law 157
Alarm Sound Level > 85 dB at 10 feet
Display Digital LCD Screen

Understanding NYC Local Law 157 Compliance

New York City Local Law 157 requires the installation of natural gas detectors in certain residential buildings. The AJ-989 is specifically designed to meet these legal requirements, ensuring that property owners avoid fines and, more importantly, protect residents from the dangers of gas leaks.

Industrial & Commercial Applications

While the AJ-989 is perfect for residential use, the principles of gas detection apply to larger scales. In industrial facilities, commercial stations, or maritime vessels associated with groups like NYK Teknik Isı or the NYK Group, specialized compliance with standards such as EN 50194 is required. The AJ-989 brings industrial-grade reliability to your home with its robust sensor technology and automatic shut-off integration capabilities.

Installation and Maintenance

Installing the AJ-989 is straightforward. It should be mounted on the wall or ceiling in areas where gas leaks are most likely to occur, such as near gas lines or appliances. Thanks to the 10-year battery, maintenance is virtually non-existent—simply test the alarm monthly using the built-in test button.