Photoelectric Smoke Detector Alarm UL217 Anka Aj-971S

The American Standard UL217 certified photoelectric smoke detector represents the pinnacle of residential fire safety technology. These advanced alarms combine the reliability of photoelectric sensing with the convenience of a 10-year built-in battery, meeting the stringent requirements of the 0th version standard UL benchmarks for smoke detection.

Specification parameters of smoke detector aj971s

• Backup battery DC3V bulit-in lithium battery
• Battery life:10 years
• Standby current:﹤12uA
• Alarm current:﹤35mA
• Low voltage threshold: 2.7V
• Alarm mode: LED & Buzzer
• Big test button for easy recommended monthly testing
• Alarm sound:﹥85dB/3m
• Product size : Φ140mm×H50mm
• Execute Criterion: UL217

Key Features of UL217 Photoelectric Smoke Detectors

1. Advanced Photoelectric Sensor Technology

These photoelectric smoke detectors excel at detecting:

• Smoldering fires (most common in residential settings)
• Low-visibility smoke from upholstery and wiring
• Fire types that produce large smoke particles

2. 10-Year Sealed Battery System

The integrated 10-year built-in battery provides:

• Continuous protection without annual battery changes
• Lithium power source that lasts the alarm’s entire lifespan
• Compliance with new UL requirements for battery duration

3. Strict UL217 Compliance

Meeting the American Standard UL217 means:

• Tested to detect fires 20% faster than previous standards
• Reduced false alarms from cooking or shower steam
• Enhanced durability and consistent performance

Understanding the 0th Version UL Standard

The 0th version standard UL represents the most current safety benchmarks:

• New testing protocols: Includes additional fire scenarios like polyurethane foam fires
• Nuisance alarm resistance: Must pass cooking and shower steam tests
• Enhanced durability: 10-year operational life requirement
• Updated alarm patterns: Distinct sound patterns for different alerts

Installation and Maintenance Requirements

To maintain UL217 compliance:

• Install on every level of the home, including basements
• Place outside sleeping areas and inside bedrooms
• Test monthly using the test button
• Replace entire unit after 10 years (or when end-of-life signal sounds)
• Vacuum annually to prevent dust accumulation

Why Choose UL217-Certified Alarms?

Selecting an American Standard UL217 compliant detector ensures:

• Third-party verified performance
• Protection against modern fire hazards
• Reduced maintenance with long-life battery
• Compliance with most US building codes and insurance requirements